| Title: | Tables so Beautifully Fine-Tuned You Will Believe It's Magic | 
| Version: | 0.9.4 | 
| Description: | The introduction of the 'broom' package has made converting model objects into data frames as simple as a single function. While the 'broom' package focuses on providing tidy data frames that can be used in advanced analysis, it deliberately stops short of providing functionality for reporting models in publication-ready tables. 'pixiedust' provides this functionality with a programming interface intended to be similar to 'ggplot2's system of layers with fine tuned control over each cell of the table. Options for output include printing to the console and to the common markdown formats (markdown, HTML, and LaTeX). With a little 'pixiedust' (and happy thoughts) tables can really fly. | 
| Depends: | R (≥ 3.1.2) | 
| Imports: | broom, checkmate (≥ 1.8.0), htmltools, knitr, labelVector, magrittr, reshape2, scales | 
| Suggests: | dplyr, rmarkdown, testthat | 
| License: | GPL-2 | GPL-3 [expanded from: GPL (≥ 2)] | 
| VignetteBuilder: | knitr | 
| URL: | https://github.com/nutterb/pixiedust | 
| BugReports: | https://github.com/nutterb/pixiedust/issues | 
| RoxygenNote: | 7.2.3 | 
| NeedsCompilation: | no | 
| Packaged: | 2023-10-10 01:12:22 UTC; benja | 
| Author: | Benjamin Nutter [aut, cre], David Kretch [ctb] | 
| Maintainer: | Benjamin Nutter <benjamin.nutter@gmail.com> | 
| Repository: | CRAN | 
| Date/Publication: | 2023-10-10 02:20:02 UTC | 
Tables So Beautifully Fine-Tuned You Will Believe It's Magic.
Description
The pixiedust mission is to provide a user friendly 
and flexible interface by which report-quality tables may 
be rendered in multiple output formats.  Initially, 
pixiedust will support markdown, HTML, and LaTeX
formats, as well as methods for console output.
Details
The advantage of pixiedust is that it gives you the
control to alter the appearance of a table by as little 
as one cell at a time.  This fine-tuned control gives you
enormous flexibility in how the final table looks with 
minimal pre and post processing.
Additionally, pixiedust is largely built on top 
of the broom package, allowing for simple and 
fast generation of tables based on analytical results.
The chief disadvantage of pixiedust is that it 
can be extremely verbose.  If you are applying many
customizations, you will find yourself writing a 
great deal of code.
Options
pixie_bookdown determines if references and labels are 
managed using the bookdown package methods.  This should be set 
to TRUE if you are rendering documents via the bookdown 
package.
border_collapse determines the settings for border styles in HTML
tables.  The most common values are "collapse" - which presses all
of the borders between cells on top of each other - and "separate" - 
which allows each cell to have its own, distinct border.  
pixie_count is used to manage table numbering in non-LaTeX tables.
See set_pixie_count for methods to manipulate the numbering.
pixie_discrete_pal  controls the colors for shading by discrete values.
pixie_float determines if tables in LaTeX output are placed in 
floating environments.
pixie_gradient_pal controls the colors giving the
endpoints of the color scale on which to shade numeric values.
pixie_hhline determins if tables in LaTeX output use the 
hhline package for constructing table cells.
pixie_html_linebreak controls the number of line breaks placed 
after a table in HTML output.
pixie_interactive Allows control over whether HTML and markdown 
tables are printed to the viewer or to the document.
pixie_justify controls the positioning of the complete table in the
document.  Note that "none" renders the table to the left side of 
the page, and subsequent elements will appear below the table.  When using
"left", subsequent elements will appear to the right of the table.
When using "right", subsequent elements will appear to the left of 
the table.
pixie_longtable determines if the longtable environment is 
used in LaTeX output.
pixie_na_string sets the default character set for replacing 
NA values in tables.
pixie_tabcolsep determines the spacing placed between cells in 
LaTeX output.  
pixiedust_print_method Sets the default printing method for tables. 
When pixiedust is being used with knitr and rmarkdown,
the default is the value of knitr::opts_knit$get("rmarkdown.pandoc.to"),
otherwise it is "console"
Table-Valued Options
| Option Name | Default | Permissible Values | 
| pixie_bookdown | FALSE | logical | 
| pixie_border_collapse | "collapse" | collapse, separate, initial, inherit | 
| pixie_count | 0 | integerlike value | 
| pixie_float | TRUE | logical | 
| pixie_hhline | FALSE | logical | 
| pixie_html_linebreak | 2 | integerlike value | 
| pixie_justify | "center" | center, none, left, right | 
| pixie_longtable | FALSE | logical | 
| pixie_tabcolsep | 6 | integerlike value | 
| pixiedust_print_method | console, html, latex, markdown, beamer | 
Cell-Valued Options
| Option Name | Default | Permissible Values | 
| pixie_discrete_pal | scales::hue_pal() | characterof valid colors | 
| pixie_gradient_pal | c("#132B43", "#56B1F7") | character(2)of valid colors | 
| pixie_na_string | NA | character | 
Author(s)
Maintainer: Benjamin Nutter benjamin.nutter@gmail.com
Other contributors:
- David Kretch [contributor] 
See Also
Useful links:
magrittr forward-pipe operator
Description
Pipe an object forward into a function or call expression
Usage
lhs %>% rhs
Arguments
| lhs,rhs | A dataset and function to apply to it | 
Chain together multiple operations
Description
Chain together multiple operations and save to the object at the start of the chain. See 'magrittr' documentation for details.
Usage
lhs %<>% rhs
Arguments
| lhs,rhs | A data set and function to apply it to | 
Convert dust Object to Data Frame
Description
Sprinkles are applied to the dust object
as if it were being prepared for printing to the console.
However, instead of printing, the object is returned 
as a single data frame.
Usage
## S3 method for class 'dust'
as.data.frame(x, ..., sprinkled = TRUE)
## S3 method for class 'dust_list'
as.data.frame(x, ...)
Arguments
| x | A  | 
| ... | Arguments to be passed to other methods. Currently unused. | 
| sprinkled | Logical.  If  | 
Details
In its current state, this can be a fairly inefficient function
as the table, if the longtable option is in use, will be built in 
a for loop and bound together using rbind.  This isn't 
really intended for large tables, but may be of assistance when 
there isn't a sprinkle that does what you want to do.  (You can 
at least pull out the object as a data frame and do your own 
post processing).
Functional Requirements
- Accepts an object of class - dustor- dust_list
- Accepts a - logical(1)indicating if the sprinkles should be applied to the data.
- For a - dustobject, returns an object of class- data.frame
- For a - dust_listobject, returns a list of objects of class- data.frame
Author(s)
Benjamin Nutter
Examples
fit <- lm(mpg ~ qsec + factor(am) + wt * factor(gear), data = mtcars)
Dust <- dust(fit) %>%
  sprinkle(cols = 2:4, round = 2) %>%
  sprinkle(cols = 5, fn = quote(pvalString(value))) %>%
  sprinkle(cols = 3, font_color = "#DA70D6") %>%
  sprinkle_print_method("html")
  
as.data.frame(Dust)
Dust Table Construction
Description
Dust tables consist of four primary components that are 
built together to create a full table.  Namely, the head, the 
body, the interfoot, and the foot.  Dust tables 
also contain a table-wide attributes border_collapse and 
longtable as well as a print_method element.
Usage
dust(object, ...)
## Default S3 method:
dust(
  object,
  ...,
  tidy_df = FALSE,
  keep_rownames = FALSE,
  glance_foot = FALSE,
  glance_stats = NULL,
  col_pairs = 2,
  byrow = FALSE,
  descriptors = "term",
  numeric_level = c("term", "term_plain", "label"),
  label = NULL,
  caption = NULL,
  caption_number = getOption("pixied_caption_number", TRUE),
  justify = getOption("pixie_justify", "center"),
  float = getOption("pixie_float", TRUE),
  longtable = getOption("pixie_longtable", FALSE),
  hhline = getOption("pixie_hhline", FALSE),
  bookdown = getOption("pixie_bookdown", FALSE),
  border_collapse = getOption("pixie_border_collapse", "collapse"),
  tabcolsep = getOption("pixie_tabcolsep", 6),
  fixed_header = getOption("pixie_fixed_header", FALSE),
  html_preserve = getOption("pixie_html_preserve", TRUE)
)
## S3 method for class 'grouped_df'
dust(object, ungroup = TRUE, ...)
## S3 method for class 'list'
dust(object, ...)
redust(x, table, part = c("head", "foot", "interfoot", "body"))
## Default S3 method:
redust(x, table, part = c("head", "foot", "interfoot", "body"))
## S3 method for class 'dust_list'
redust(x, table, part = c("head", "foot", "interfoot", "body"))
Arguments
| object | An object that has a  | 
| ... | Additional arguments to pass to  | 
| tidy_df | When  | 
| keep_rownames | When  | 
| glance_foot | Arrange the glance statistics for the  | 
| glance_stats | A character vector giving the names of the glance statistics
to put in the output.  When  | 
| col_pairs | An integer indicating the number of column-pairings for the 
glance output.  This must be less than half the total number of columns,
as each column-pairing includes a statistic name and value. See the full
documentation for the unexported function  | 
| byrow | A logical, defaulting to  | 
| descriptors | A character vector indicating the descriptors to
be used in the table.  Acceptable inputs are  | 
| numeric_level | A character string that determines which descriptor
is used for numeric variables in the  | 
| label | 
 | 
| caption | A character string giving the caption for the table. | 
| caption_number | 
 | 
| justify | 
 | 
| float | A logical used only in LaTeX output.  When  | 
| longtable | Allows the user to print a table in multiple sections.
This is useful when 
a table has more rows than will fit on a printed page.  Acceptable inputs are  | 
| hhline | Logical.  When  | 
| bookdown | Logical. When  | 
| border_collapse | 
 | 
| tabcolsep | 
 | 
| fixed_header | 
 | 
| html_preserve | 
 | 
| ungroup | Used when a  | 
| x | A dust object | 
| table | A data frame of similar dimensions of the part being replaced. | 
| part | The part of the table to replace with  | 
Details
The head object describes what each column of the table
represents.  By default, the head is a single row, but multi row headers
may be provided.  Note that multirow headers may not render in markdown
or console output as intended, though rendering in HTML and LaTeX is 
fairly reliable. In longtables (tables broken over multiple pages), 
the head appears at the top of each table portion.
The body object gives the main body of information.  In long tables,
this section is broken into portions, ideally with one portion per page.
The interfoot object is an optional table to be placed at the 
bottom of longtable portions with the exception of the last portion.  A 
well designed interfoot can convey to the user that the table 
continues on the next page.
The foot object is the table that appears at the end of the 
completed table.  For model objects, it is recommended that the 
glance statistics be used to display model fit 
statistics.
The border_collapse object applies to an entire HTML table.  It
indicates if the borders should form a single line or distinct lines.
The longtable object determines how many rows per page are printed.
By default, all content is printed as a single table.  Using the 
longtable argument in the sprinkle function can change this
setting.
The table_width element is specific to LaTeX tables.  This is a reference
value for when column widths are specified in terms of the % units.  For
example, a column width of 20% will be defined as table_width * .20.
The value in table_width is assumed to be in inches and defaults to 6.
The tabcolsep object determines the spacing between columns in a 
LaTeX table in pt.  By default, it is set at 6.
The print_method object determines how the table is rendered when 
the print method is invoked.  The default is to print to the 
console.
Many of these options may be set globally.  See 
pixiedust for a complete list of package options.
Value
Returns an object of class dust
Symbols and Greek Letters
When using markdown, math symbols and greek letters may be employed as 
they would within a markdown document.  For example, "$\alpha$"
will render as the lower case Greek alpha.  Math symbols may be rendered
in the same manner.
Author(s)
Benjamin Nutter
See Also
tidy glance_foot 
tidy_levels_labels pixiedust
get_dust_part for extracting parts of the dust object
in order to build custom headers and/or footers.
Examples
x <- dust(lm(mpg ~ qsec + factor(am), data = mtcars))
x
Generate CSS Code for Fixed Header Tables
Description
Tables with a fixed header may be generated to permit the headings to remain visible with the data. The CSS is not difficult, but it not-trivial and requires some coordination across a few parts. This functions standardizes the generation of the CSS code using as few elements as possible. Note that there is potential for conflicts with existing CSS in this method.
Usage
fixed_header_css(
  fixed_header_class_name = "pixie-fixed",
  scroll_body_height = 300,
  scroll_body_height_units = "px",
  scroll_body_background_color = "white",
  fixed_header_height = 20,
  fixed_header_height_units = "px",
  fixed_header_text_height = fixed_header_height/2,
  fixed_header_text_height_units = "px",
  fixed_header_background_color = "white",
  pretty = TRUE
)
Arguments
| fixed_header_class_name | 
 | 
| scroll_body_height | 
 | 
| scroll_body_height_units | 
 | 
| scroll_body_background_color | 
 | 
| fixed_header_height | 
 | 
| fixed_header_height_units | 
 | 
| fixed_header_text_height | 
 | 
| fixed_header_text_height_units | 
 | 
| fixed_header_background_color | 
 | 
| pretty | 
 | 
Details
CSS doesn't make this kind of table natural.  The solution to 
generate the fixed headers used by pixiedust is probably not the 
best solution in terms of CSS design.  It is, however, the most conducive 
to generating dynamically on the fly. 
The fixed header table requires nesting several HTML elements.
- a - divtag is used to control the alignment of the table
- a - sectiontag is used to set up the header row that remains fixed.
- a - divthat sets the height of the scrollable body
- the - tabletag establishes the actual table.
- The - thtags inside the table are set to full transparency and the content of the headers is duplicated in a- divwithin the- thtag to display the content.
To accomplish these tasks, some CSS is exported with the table and placed in the document immediately before the table. Read further to understand the conflicts that may arise if you are using custom CSS specifications in your documents.
Avoiding CSS Conflicts
Because of all of the shenanigans involved, exporting the CSS with the tables
may result in conflicts with your custom CSS. Most importantly, any CSS
you have applied to the th or td tags may be overwritten.
If you are using custom CSS, you may want to consider using 
include_fixed_header_css = FALSE and then utilizing 
fixed_header_css to generate CSS you can include in your 
CSS file to provide the fixed headers.  The code generated by 
fixed_header_css ought to be placed before your definitions for
td and th.  
To get the same header design in the fixed table, you will want to modify 
the .th-pixie-fixed div definition in the CSS to match your desired
th definition.
The code produced by fixed_header_css will include comments where
there is potential for a CSS conflict.
Functional Requirements
- If - pretty = TRUEprint results to the console.
- If - pretty = FALSEReturn a character string of length 1.
- Cast an error if - scroll_body_heightis not- integerish(1)
- Cast an error if - scroll_body_height_unitsis not- character(1)
- Cast an error if - scroll_body_background_coloris not- character(1)
- Cast an error if - scroll_body_background_coloris not a valid color.
- Cast an error if - fixed_header_heightis not- integerish(1)
- Cast an error if - fixed_header_height_unitsis not- character(1)
- Cast an error if - fixed_header_text_heightis not- numeric(1)
- Cast an error if - fixed_header_text_height_unitsis not- character(1)
- Cast an error if - fixed_header_background_coloris not- character(1)
- Cast an error if - fixed_header_background_coloris not a valid color.
- Cast an error if - prettyis not- logical(1)
Source
Jonas Schubert Erlandsson. https://jsfiddle.net/dPixie/byB9d/3/
Mimic Stargazer Output to Display Multiple Models
Description
Tidy multiple models and display coefficients and test statistics in a side-by-side format.
Usage
gaze(
  ...,
  include_glance = TRUE,
  glance_vars = c("adj.r.squared", "sigma", "AIC"),
  digits = 3
)
Arguments
| ... | models to be tidied. Arguments may be named or unnamed. For named arguments, the model will be identfied by the argument name; for unnamed arguments, the object name will be the identifier. | 
| include_glance | 
 | 
| glance_vars | 
 | 
| digits | 
 | 
Details
This function is still in development. Significant stars will be added in a future version. Note that function defaults may be subject to change.
Functional Requirements
- Return a data frame object 
- Cast an error if - include_glanceis not- logical(1)
- Cast an error if - glance_varsis not a- charactervector.
- Cast an error if - digitsis not- "integerish(1)".
Examples
fit1 <- lm(mpg ~ qsec + am + wt + gear + factor(vs), data = mtcars)
fit2 <- lm(mpg ~ am + wt + gear + factor(vs), data = mtcars)
gaze(fit1, fit2)
gaze(with_qsec = fit1, 
     without_qsec = fit2)
gaze(fit1, fit2, include_glance = FALSE)
gaze(fit1, fit2, glance_vars = c("AIC", "BIC"))
Get a Portion of the Table Stored in a dust Object
Description
Making customized table headers and footers requires a
data frame be added to the dust object that has the same
column dimension as the rest of the table.  In order to reduce the 
inconvenience of counting columns, get_dust_part extracts the 
data frame portion currently in use.  This ensures the column dimension
is correct with the current values, and provides an object suitable
for editing.
Usage
get_dust_part(x, part = c("head", "foot", "interfoot", "body"))
Arguments
| x | An object of class  | 
| part | 
 | 
Value
an object of class data.frame
Functional Requirements
- Return, as a data frame, the part of the table requested in - part
- Cast an error if - xis not a- dustobject.
- Cast an error if - partis not one of- c("head", "foot", "interfoot", "body")
Prepare Glance Statistics for pixiedust Table Footer
Description
Retrieves the broom::glance output for a model object and 
structures it into a table suitable to be placed in the footer.  By default,
the statistics are displayed in two column-pairings (see Details).  This 
function is not exported but is documented to maintain clarity of its 
behavior.  It is intended for use within dust, but may be useful
elsewhere if used with caution.
Usage
glance_foot(fit, col_pairs, total_cols, glance_stats = NULL, byrow = FALSE)
Arguments
| fit | A model object with a  | 
| col_pairs | An integer indicating the number of column-pairings for the glance output. This must be less than half the total number of columns, as each column-pairing includes a statistic name and value. | 
| total_cols | The total number of columns in the body of the pixiedust table | 
| glance_stats | A character vector giving the names of the glance statistics
to put in the output.  When  | 
| byrow | A logical, defaulting to  | 
Details
Statistics are placed in column-pairings.  Each column pair consists of 
two columns named stat_name_x and stat_value_x, where x is 
the integer index of the column pair.  The column-pairings are used to allow 
the user to further customize the output, more-so than pasting the name and 
value together would allow.  With this design, statistics can be rounded 
differently by applying sprinkles to the resulting table.
The total number of column-pairings must be less than or equal to half the number of total columns. This constraint prevents making glance tables that have more columns than the model table it accompanies.
When the total number of column-parings is strictly less than half the total number of columns, "filler" columns are placed between the column pairings. As much as possible, the filler columns are placed evenly between the column pairings, but when the number of filler columns is unequal between column-pairings, there will be more space placed on the left side. For example, if a table has 7 columns and 3 column-pairings, the order of placement would be column-pair-1, filler, column-pair-2, column-pair-3. Since there was only room for one column of filler, it was placed in the left most fill position.
The byrow arguments acts similarly to the byrow argument in the
matrix function, but defaults to FALSE.  If four statistics are 
requested and byrow = FALSE, the left column-pair will have statistics 
one and two, while the right column-pair will have statistics three and four.
If byrow = TRUE, however, the left column-pair will have statistics
one and three, while the right column-pair will have statistics two and four.
Author(s)
Benjamin Nutter
Determine the Indices to Sprinkle
Description
The sprinkle methods accept the rows and columns that are
to be modified as matrix coordinates.  The dust object stores
the table data in a long form.  The tabular coordinates are translated
into row indices using this function.
Usage
index_to_sprinkle(
  x,
  rows = NULL,
  cols = NULL,
  fixed = FALSE,
  part = c("body", "head", "foot", "interfoot"),
  recycle = c("none", "rows", "cols", "columns"),
  coll = NULL
)
Arguments
| x | An object of class  | 
| rows | Either a numeric vector of rows in the tabular object to be 
modified or an object of class  | 
| cols | Either a numeric vector of columns in the tabular object to be modified, or a character vector of column names. A mixture of character and numeric indices is permissible. | 
| fixed | 
 | 
| part | 
 | 
| recycle | 
 | 
| coll | An optional  | 
Details
When fixed = FALSE, sprinkles are applied at the 
intersection of rows and cols, meaning that the arguments 
do not have to share the same length.  When fixed = TRUE, they must
share the same length.
The value of recycle determines how sprinkles are 
managed when the sprinkle input doesn't match the length of the region
to be sprinkled.  By default, recycling is turned off.  Recycling 
may be performed across rows first (left to right, top to bottom), 
or down columns first (top to bottom, left to right).  "cols" 
and "columns" have the same effect. The two choices to specify 
are motivated by the fact that I sometimes get confused about which
it should be. :)
Functional Requirements
- Return the indices of the intersection of - rowsand- cols
- If - rows = NULL, assume all rows.
- If - rowsis an expression where no values resolve to- TRUE, return- xunchanged.
- If any value in - rowsis not a valid row in the table, cast an error.
- If - cols = NULL, assume all columns.
- If any value in - colsdoes not identify a column in the table, cast an error.
- If - fixed = TRUE,- length(rows)(or- sum(rows), if an expression) and- colsmust have the same length.
- Cast an error if - fixedis not a- logical(1)
- Cast an error if - partis not one of- "body",- "head",- "foot", or- "interfoot".
Author(s)
Benjamin Nutter
See Also
sprinkle
Test a Character String For Pixiedust Recognized Color Format
Description
pixiedust recognizes colors as dvips names, 
rgb(R,G,B), rgba(R,G,B,A), #RRGGBB, or 
#RRGGBBAA.  This code returns a logical indicating if 
the given character strings are valid.
Usage
is_valid_color(color)
is_valid_color_single(color)
Arguments
| color | A character vector of color names. | 
Functional Requirements
- Returns a logical vector correctly identifying valid color formats. 
- Casts an error if - coloris not a character object.
knitr Printing Function
Description
Custom printing functions for displaying dust and 
dust_list objects in R Markdown documents.
Usage
## S3 method for class 'dust'
knit_print(x, options, ...)
## S3 method for class 'dust_list'
knit_print(x, options, ...)
Arguments
| x | A dust object | 
| options | A list of options received from the chunk options. | 
| ... | Additional arguments to pass to other methods. | 
Sprinkle Medleys
Description
pixiedust can get to be pretty verbose if you are doing
a great deal of customization.  Sprinkle medleys can take out some of that
code by bundling much of the formatting sprinkling into a single function.
pixiedust comes with a couple very basic medleys that are mostly 
for illustration of how to write medleys.  Once you get the hang of 
sprinkling, you need only bundle your most common sprinkles into a 
medley function of your own and cut down on some of the time 
coding your most basic formatting.
Usage
medley_bw(x)
medley_model(x, round = 2)
Arguments
| x | a  | 
| round | A numerical value passed to the  | 
Author(s)
Benjamin Nutter
Examples
## Not run: 
fit <- lm(mpg ~ qsec + factor(am) + wt * factor(gear), data = mtcars)
dust(fit) %>%
  medley_bw() %>%
  sprinkle_print_method("html")
  
dust(fit, glance_foot = TRUE) %>%
  medley_model() %>%
  sprinkle_print_method("html")
  
# Medleys are not generics and do not have methods.
# Using a medley on a dust_list object requires pixieply
library(dplyr)
mtcars %>% 
  group_by(gear) %>% 
  dust(ungroup = FALSE) %>% 
  pixieply(medley_bw) %>% 
  sprinkle_print_method("html")
## End(Not run)
Apply Cell Borders to All Cells in a Region
Description
For most output, specifying a region of cells with borders
on all sides is as simple as giving the sprinkle border = "all".
In LaTeX output, however, this can result in thicker than expected 
vertical borders.  This medley provides a LaTeX save approach to 
drawing borders on all sides without getting the double vertical 
border effect.
Usage
medley_all_borders(
  x,
  rows = NULL,
  cols = NULL,
  horizontal = TRUE,
  vertical = TRUE,
  part = "body"
)
Arguments
| x | An object of class dust | 
| rows | The rows over which the borders are to be drawn. | 
| cols | The cols over which the borders are to be drawn. | 
| horizontal | Logical. Toggles horizontal borders. | 
| vertical | Logical. Toggles vertical borders | 
| part | A character vector.  May contain any of  | 
Author(s)
Benjamin Nutter
Access and manipulate table numbers counters
Description
While LaTeX provides the ability to automatically number tables, this 
functionality is not readily available with console, HTML, or Word output.  By 
keep track of the number of (captioned) tables, we can mimic the behavior of 
LaTeX tables to provide (mostly) consistent table numbering between formats.  The 
table numbering is stored in the pixie_count option.
Usage
get_pixie_count()
set_pixie_count(value)
increment_pixie_count(increment = 1)
Arguments
| value | The value at which to set the pixie counter. | 
| increment | The value to add to the current pixie count. Defaults to 1. | 
Details
The pixie count is stored in the options and may also be accessed using
getOption("pixie_count").  
get_pixie_count returns the current value of the counter.
set_pixie_count sets the value to the user-specification.
increment_pixie_count increments the pixie count, usually by 1.  This is called
within print.dust any time a dust object has a caption.
Author(s)
Benjamin Nutter
Source
The concept for these functions is loosely based on a hook meant to work with 
knitr to automatically number tables. 
http://stackoverflow.com/a/18672268/1017276
Determine the Current Print Method
Description
The user has the option of designating the print method to use, or 
allowing package to select one from the knitr settings.  This 
function manages the logic of assigning the correct print method within the
dust call.
Usage
pixiedust_print_method()
Details
The function pixiedust_print_method first uses 
getOption("pixiedust_print_method") to determine if the user has set 
a print method.  If the user has not, it then looks to 
knitr::opts_knit$get("rmarkdown.pandoc.to"). Finally, if this is also
NULL, then the option is set to "console".
Apply Functions Over 'dust_list' Objects
Description
The sprinkle methods work with dust_list 
objects very naturally, but medleys pose a slightly more difficult problem.
Medleys are intended to be predefined collections of sprinkles that reduce
the time required to format a table with a particular look and style.  
It seems counter-productive to expect a user to define each of her or his
medleys as a method that can work with both dust and dust_list
objects.  pixieply is a wrapper to lapply that preserves the
dust_list class of the object.
pixiemap provides functionality to apply differing sprinkles over
each element of a dust_list.  The most common example is probably
adding a unique caption to each table.
Usage
pixieply(X, FUN, ...)
pixiemap(X, FUN, ..., MoreArgs = NULL, SIMPLIFY = FALSE, USE.NAMES = TRUE)
Arguments
| X | An object of class  | 
| FUN | A function to apply to each element of  | 
| ... | Additional arguments to pass to  | 
| MoreArgs | a list of other arguments to FUN | 
| SIMPLIFY | logical or character string; attempt to reduce the result 
to a vector, matrix or higher dimensional array; see the  | 
| USE.NAMES | logical; use names if the first ... argument has names, or if it is a character vector, use that character vector as the names. | 
Examples
## Not run: 
#* This example will only display the last table 
#* in the viewer pane.  To see the full output,
#* run this example in an Rmarkdown document.
x <- split(mtcars, list(mtcars$am, mtcars$vs))
dust(x) %>%
  sprinkle_print_method("html") %>%
  pixieply(medley_bw)
## End(Not run)
## Not run: 
#* This is the full text of an RMarkdown script 
#* for the previous example.
---
title: "Pixieply"
output: html_document
---
```{r}
library(pixiedust)
x <- dplyr::group_by(mtcars, am, vs)
dust(x, ungroup = FALSE) %>%
  sprinkle_print_method("html") %>%
    pixieply(medley_bw)
```
## End(Not run)
Print A dust Table
Description
Apply the formatting to a dust object and print the table.
Usage
## S3 method for class 'dust'
print(x, ..., asis = TRUE, linebreak_at_end = 2)
## S3 method for class 'dust_list'
print(x, ..., asis = TRUE)
Arguments
| x | An object of class  | 
| ... | Additional arguments to pass to the print method. Currently ignored. | 
| asis | A logical value that controls if the output is printed using
 | 
| linebreak_at_end | Used only in HTML tables; defines the number of 
line break tags  | 
Details
The printing format is drawn from options()$dustpan_output and may take any of
the values "console", "markdown", "html", or "latex"
The markdown, html, and latex output is returned via asis_output,
which forces the output into the 'asis' environment.  It is intended to work 
with Rmarkdown, and the tables will be rendered regardless of the 
chunk's results argument.  Currently, there is no way to to capture
the code for additional post processing.
When asis = TRUE (the default), the output is returned via knitr::asis_output,
which renders the output as if the chunk options included results = 'asis'.  Under 
this setting, the table will be rendered regardless of the value of the results 
option.  Using asis = FALSE returns a character string with the code for the table.
This may be rendered in a markdown document via cat(print(x, asis = FALSE)) with the 
chunk option results = 'asis'.  (If working with an Rnw file, the chunk option is 
results = tex).  The only way to use the asis argument is with an explicit
call to print.dust.
Author(s)
Benjamin Nutter
Examples
dust(lm(mpg ~ qsec + factor(am), data = mtcars))
Format P-values for Reports
Description
Convert numeric p-values to character strings according to pre-defined formatting parameters. Additional formats may be added for required or desired reporting standards.
Usage
pval_string(p, format = c("default", "exact", "scientific"), digits = 3, ...)
pvalString(p, format = c("default", "exact", "scientific"), digits = 3, ...)
Arguments
| p | a numeric vector of p-values. | 
| format | A character string indicating the desired format for the p-values. See Details for full descriptions. | 
| digits | For  | 
| ... | Additional arguments to be passed to  | 
Details
When format = "default", p-values are formatted:
-  p > 0.99: "> 0.99" 
-  0.99 > p > 0.10: Rounded to two digits 
-  0.10 > p > 0.001: Rounded to three digits 
-  0.001 > p: "< 0.001" 
When format = "exact", the exact p-value is printed with the 
number of places after the deimal equal to digits.  P-values smaller
that 1*(10^-digits) are printed in scientific notation.
When format = "scientific", all values are printed in scientific
notation with digits digits printed before the e.
Functional Requirements
- When - format = "default", print p-values greater than 0.99 as "> 0.99"; greater than 0.10 with two digits; greater than 0.001 with three digits; and less than 0.001 as "< 0.001".
- when - format = "exact", print the exact p-value out to at most- digitsplaces past the decimal place.
- When - format = "scientific", print the p-value in scientific notation with up to- digitsvalues ahead of the- e.
- Cast an error if - pis not numeric on the interval [0, 1]
- Cast an error if format is not one of - c("default", "exact", "scientific").
- Cast an error if - digitsis not- integerish(1).
Author(s)
Benjamin Nutter
Examples
 p <- c(1, .999, .905, .505, .205, .125, .09531,
        .05493, .04532, .011234, .0003431, .000000342)
 pvalString(p, format="default")
 pvalString(p, format="exact", digits=3)
 pvalString(p, format="exact", digits=2)
 pvalString(p, format="scientific", digits=3)
 pvalString(p, format="scientific", digits=4)
 
Bind Rows in Base R
Description
Stack data frames on top of each other. Data frames do not have to have all of the same columns.
Usage
.rbind_internal(..., deparse.level = 1)
Arguments
| ... | data frames | 
| deparse.level | See  | 
Author(s)
Benjamin Nutter
Reshape data frames for Pixiedust
Description
Pixiedust reshapes data to have one row per cell in the table. This permits adjustments to be made to individual cells. These internal functions are provided to simplify the reshaping process. It is slower than using the tidyr functions 'gather' and 'spread' (or whatever their newer counterparts are), but keeps me off of other people's development schedules.
Usage
.make_dataframe_long(data)
Arguments
| data | A  | 
Details
No validations are performed in these functions, and it is assumed that the input data set has the components it needs.
Author(s)
Benjamin Nutter
Escape Characters for Printing in LaTeX Output
Description
sanitize_latex translates particular items in 
character strings to LaTeX format, e.g., makes a^2 = a\$^2\$ 
for superscript within variable labels. LaTeX names of greek letters 
(e.g., "alpha") will have backslashes added if greek==TRUE. 
Math mode is inserted as needed. sanitize_latex assumes that 
input text always has matches, e.g. [) [] (] (), and that 
surrounding by \$\$ is OK.
Usage
sanitize_latex(
  object,
  inn = NULL,
  out = NULL,
  pb = FALSE,
  greek = FALSE,
  na = "",
  ...
)
Arguments
| object | 
 | 
| inn | 
 | 
| out | 
 | 
| pb | 
 | 
| greek | 
 | 
| na | 
 | 
| ... | Additional arguments for other methods. Currently ignored. | 
Value
Vector of chracter strings.
Author(s)
This code is lifted from the Hmisc package in order to 
avoid depending on that package.
Frank E. Harrell Jr.
Department of Biostatistics,
Vanderbilt University,
f.harrell@vanderbilt.edu
Richard M. Heiberger,
Department of Statistics,
Temple University, Philadelphia, PA.
rmh@temple.edu
David R. Whiting,
School of Clinical Medical Sciences (Diabetes),
University of Newcastle upon Tyne, UK.
david.whiting@ncl.ac.uk
See Also
Hmisc::latexTranslate, Hmisc::sedit
Examples
sanitize_latex("75% of the cars were | more than $20,000 Delta = 1.30", greek = TRUE)
Define Customizations to a Table
Description
Customizations to a dust table are added by "sprinkling"
with a little extra pixie dust.  Sprinkles are a collection of attributes
to be applied over a subset of table cells.  They may be added to any 
part of the table, or to the table as a whole.
Usage
sprinkle(
  x,
  rows = NULL,
  cols = NULL,
  ...,
  part = c("body", "head", "foot", "interfoot", "table")
)
## Default S3 method:
sprinkle(
  x,
  rows = NULL,
  cols = NULL,
  ...,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns")
)
## S3 method for class 'dust_list'
sprinkle(
  x,
  rows = NULL,
  cols = NULL,
  ...,
  part = c("body", "head", "foot", "interfoot", "table")
)
sprinkle_print_method(
  x,
  print_method = c("console", "markdown", "html", "latex")
)
## Default S3 method:
sprinkle_print_method(
  x,
  print_method = c("console", "markdown", "html", "latex", "docx")
)
## S3 method for class 'dust_list'
sprinkle_print_method(
  x,
  print_method = c("console", "markdown", "html", "latex")
)
sprinkle_table(x, cols = NULL, ..., part = "table")
## Default S3 method:
sprinkle_table(x, cols = NULL, ..., part = "table")
## S3 method for class 'dust_list'
sprinkle_table(x, cols = NULL, ..., part = "table")
Arguments
| x | A dust object | 
| rows | A numeric vector specifying the rows of the table to sprinkle. See details for more about sprinkling. | 
| cols | A numeric (or character) vector specifying the columns (or column names) to sprinkle. See details for more about sprinkling. | 
| ... | named arguments, each of length 1, defining the customizations for the given cells. See "Sprinkles" for a listing of these arguments. | 
| part | A character string denoting which part of the table to modify. | 
| fixed | 
 | 
| recycle | A  | 
| print_method | A character string giving the print method for the table. 
Note:  | 
Details
Sprinkling is done over the intersection of rows and columns 
(unless fixed = TRUE.  If
rows but no columns are specified, sprinkling is performed over all columns
of the given given rows. The reverse is true for when columns but no rows
are specified.  If neither columns nor rows are specified, the attribute 
is applied over all of the cells in the table part denoted in part.
If at least one of border, border_thickness, border_units,
border_style or border_color is specified, the remaining
unspecified attributes assume their default values.
Other sprinkle pairings are height and height_units; 
width and width_units; font_size and font_size_units;
bg_pattern and bg_pattern_by
The sprinkles bg and bg_pattern may not be used together.
A more detailed demonstration of the use of sprinkles is available in 
vignette("pixiedust", package = "pixiedust")
Using sprinkle_table, sprinkles may be applied to the columns of multiple tables. Table
parts are required to have the same number of columns, but not necessarily the same number 
of rows, which is why the rows argument is not available for the sprinkle_table.
In contrast to sprinkle, the part argument in sprinkle_table will 
accept multiple parts.  If any of the named parts is "table", the sprinkle will be 
applied to the columns of all of the parts.
Sprinkles
The following table describes the valid sprinkles that may be defined in the 
... dots argument.  All sprinkles may be defined for any output type, but 
only sprinkles recognized by that output type will be applied when printed.  
A more readable format of this information is available in  
vignette("sprinkles", package = "pixiedust").
| bg | ||
| action | Modifies the background color of a cell. | |
| default | ||
| accepts | dvips color names; rgb(R,G,B); rgba(R,G,B,A); | |
| #RRGGBB; #RRGGBBAA. See the "Colors" section | ||
| for further details. | ||
| console | Not recognized | |
| markdown | Not recognized | |
| html | Accepts any of the listed formats; | |
| recognizes transparency | ||
| latex | Accepts any of the listed formats, | |
| but ignores transparency | ||
| bg_pattern | ||
| action | Generates a pattern of background colors. | |
| Can be used to make striping | ||
| by rows or by columns. | ||
| default | c("#FFFFFF", "#DDDDDD") | |
| accepts | A vector of color names: | |
| dvips color names; rgb(R,G,B); rgba(R,G,B,A); | ||
| #RRGGBB; #RRGGBBAA | ||
| console | Not recognized | |
| markdown | Not recognized | |
| html | Accepts any of the listed formats; | |
| recognizes transparency | ||
| latex | Accepts any of the listed formats, | |
| but ignores transparency | ||
| bg_pattern_by | ||
| action | Determines if a `bg_pattern` is patterned | |
| by row or by columns. | ||
| default | "rows" | |
| accepts | "rows", "columns", "cols" | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognized | |
| bold | ||
| action | Renders text within a cell in bold. | |
| default | FALSE | |
| accepts | logical(1) | |
| console | Recognized; rendered as double asterisks on either | |
| side of the text | ||
| markdown | Recognized | |
| html | Recognized | |
| latex | Recognized | |
| border_collapse | ||
| action | Sets the `border-collapse` property in an | |
| HTML table. The property sets whether the | ||
| table borders are collapsed into a | ||
| single border or detached as in standard HTML. | ||
| default | TRUE | |
| accepts | logical(1) | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Not recognized | |
| border | ||
| action | Sets a border on the specified side of a cell. | |
| default | ||
| accepts | Any combination of "all", "bottom", "left", "top", | |
| "right". Using "all" results in all borders | ||
| being drawn, regardless of what other values are | ||
| passed with it. | ||
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognized | |
| border_color | ||
| action | Sets the color of the borders specified for a cell. | |
| default | "Black" | |
| accepts | character(1) | |
| dvips color names; rgb(R,G,B); rgba(R,G,B,A); | ||
| #RRGGBB; #RRGGBBAA. See the "Colors" section | ||
| for further details. | ||
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognized | |
| border_style | ||
| action | Sets the border style for a specified cell | |
| default | "solid" | |
| accepts | character(1) | |
| "solid", "dashed", "dotted", "double", "groove", | ||
| "ridge", "inset", "outset", "hidden", "none" | ||
| console | Not recognized | |
| markdown | Not recognized | |
| html | Accepts any of the values listed. | |
| latex; hhline = FALSE | accepts "solid", "dashed", "dotted", | |
| "hidden", "none" | ||
| "dotted" is silently changed to "dashed" | ||
| "hidden" and "none" are equivalent. | ||
| latex; hhline = TRUE | accepts "solid", "double", "hidden", "none" | |
| "hidden" and "none" are equivalent. | ||
| border_thickness | ||
| action | Sets the thickness of the specified border | |
| default | 1 | |
| accepts | numeric(1) | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognized | |
| border_units | ||
| action | Sets the unit of measure for the specified border | |
| thickness | ||
| default | "pt" | |
| accepts | "pt", "px" | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Silently changes "px" to "pt" | |
| caption | ||
| action | Adds or alters the `caption` property | |
| default | ||
| accepts | character(1) | |
| console | Recognized | |
| markdown | Recognized | |
| html | Recognized | |
| latex | Recognized | |
| discrete | ||
| action | Adds distinct background colors based on | |
| discrete values in the selected region. | ||
| May not be used concurrently with bg. | ||
| "font"is an alias for"font_color" | ||
| and "border"is an alias for | ||
| all borders. | ||
| default | "bg" | |
| accepts | "bg", "font", "font_color", "border", | |
| "left_border", "top_border", "right_border", | ||
| "bottom_border" | ||
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognized | |
| discrete_color | ||
| action | Sets the color palette from which discrete | |
| selects background colors. If NULL | ||
| colors are automatically selected using | ||
| the scalespackage. | ||
| default | getOption("pixie_discrete_pal", NULL) | |
| accepts | character | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognized | |
| float | ||
| action | Sets the `float` property | |
| default | TRUE | |
| accepts | logical(1) | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Not recognized | |
| latex | Recognized | |
| fn | ||
| action | Applies a function to the value of a cell. | |
| The function should be an | ||
| expression that acts on the variable `value`. | ||
| For example, quote(format(value, nsmall = 3)) | ||
| default | ||
| accepts | call | |
| console | Recognized | |
| markdown | Recognized | |
| html | Recognized | |
| latex | Recognized | |
| font_color | ||
| action | Sets the color of the cell text | |
| default | Black | |
| accepts | dvips color names; rgb(R,G,B); rgba(R,G,B,A); | |
| #RRGGBB; #RRGGBBAA. See the "Colors" section | ||
| for further details. | ||
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized; transparency recognized | |
| latex | Recognized; transparency ignored | |
| font_family | ||
| action | Sets the font for the text | |
| default | Times New Roman | |
| accepts | character(1) | |
| http://www.w3schools.com/cssref/css_websafe_fonts.asp | ||
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Not recognized | |
| font_size | ||
| action | Sets the size of the font in the cell | |
| default | ||
| accepts | numeric(1) | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognized | |
| font_size_units | ||
| action | Determines the units in which `font_size` | |
| is measured | ||
| default | "px" | |
| accepts | "px", "pt", "%", "em" | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Only recognizes "pt" and "em". | |
| All others are coerced to "pt" | ||
| gradient | ||
| action | Adds distinct background colors based on | |
| progressively increasing values in the | ||
| selected region. May not be used concurrently | ||
| with bg. | ||
| "font"is an alias for"font_color" | ||
| and "border"is an alias for | ||
| all borders. | ||
| default | "bg" | |
| accepts | "bg", "font", "font_color", "border", | |
| "left_border", "top_border", "right_border", | ||
| "bottom_border" | ||
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognized | |
| gradient_colors | ||
| action | Provides the colors between which to | |
| shade gradients. | ||
| default | getOptions("pixie_gradient_pal", NULL) | |
| accepts | character | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognized | |
| gradient_cut | ||
| action | Determines the breaks points for the | |
| gradient shading. When NULL | ||
| equally spaced quantiles are used, the | ||
| number of which are determined by | ||
| gradient_n. | ||
| default | NULL | |
| accepts | numeric | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognized | |
| gradient_n | ||
| action | Determines the number of shades to use | |
| between the colors in gradient_colors. | ||
| default | 10 | |
| accepts | numeric | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognized | |
| gradient_na | ||
| action | Sets the color of NA values when gradients | |
| are shaded. | ||
| default | grey | |
| accepts | character(1) | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognized | |
| halign | ||
| action | Sets the horizontal alignment of the text in | |
| the cell | ||
| default | ||
| accepts | "left", "center", "right" | |
| console | Not recognized | |
| markdown | Recognized; numeric values will auto align to the | |
| right if no value given. | ||
| html | Recognized. Does not currently employ auto | |
| alignment of numeric values, but this may change. | ||
| latex | Recognized; numeric values will auto align to | |
| the right if no value given. | ||
| height | ||
| action | Sets the height of the cell | |
| default | ||
| accepts | numeric(1) | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognized | |
| height_units | ||
| action | Determines the units in which `height` is measured | |
| default | "pt" | |
| accepts | "px", "pt", "cm", "in", "%" | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognized; "px" is coerced to "pt" | |
| hhline | ||
| action | Toggles the option for cell border drawing with | |
| the `hhline` LaTeX package | ||
| default | FALSE | |
| accepts | logical(1) | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Not recognized | |
| latex | Recognized. When `FALSE` double borders are | |
| not available. | ||
| When `TRUE`, colored and dashed borders are not | ||
| available. This is usually the better option | ||
| when using colored backgrounds in table cells. | ||
| italic | ||
| action | Renders the text in the cell in italic | |
| default | FALSE | |
| accepts | logical(1) | |
| console | Recognized; rendered as an underscore on either | |
| side of the text. | ||
| markdown | Recognized | |
| html | Recognized | |
| latex | Recognized | |
| justify | ||
| action | Justifies the entire table on the page. | |
| default | "center" | |
| accepts | character(1) | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognizes "center", but both "left" and "right" | |
| are rendered as left justified. This may change | ||
| if a satisfactory solution is found. | ||
| Usually, tables are best left centered. | ||
| longtable | ||
| action | Toggles the use of the LaTeX `longtable` style | |
| tables, namely allowing long tables to be broken | ||
| into multiple sections. The table header appears | ||
| at the top of each section. The table interfoot | ||
| appears at the bottom of each section, except | ||
| for the last. | ||
| The table foot appears at the bottom of the | ||
| last section. | ||
| May accept either a logical or a numerical value. | ||
| If numerical, each section will have the specified | ||
| number of rows. | ||
| default | FALSE | |
| accepts | logical(1); numeric(1) | |
| console | Recognized; when `TRUE`, defaults to 25 rows | |
| per section. | ||
| markdown | Recognized; when `TRUE`, defaults to 25 rows | |
| per section. | ||
| html | Recognized; when `TRUE`, defaults to 25 rows | |
| per section. | ||
| latex | Recognized; when `TRUE`, `longtable`'s own algorithm | |
| will determine the number of rows per section. | ||
| When numeric, breaks are forced at the specified | ||
| number of rows. | ||
| merge | ||
| action | Merges cells in the specified range into a | |
| single cell. In cases where | ||
| either `merge_rowval` or `merge_colval` is | ||
| specified, they will only be | ||
| honored if `merge = TRUE`. You must opt in to | ||
| this action. | ||
| default | FALSE | |
| accepts | logical(1) | |
| console | Recognized | |
| markdown | Recognized | |
| html | Recognized | |
| latex | Recognized | |
| merge_rowval | ||
| action | Specifies the row value of the merged range to | |
| print in the table | ||
| default | minimum row value of the merged range | |
| accepts | numeric(1) | |
| console | Recognized | |
| markdown | Recognized | |
| html | Recognized | |
| latex | Recognized | |
| merge_colval | ||
| action | Specifies the column value of the merged range | |
| to print in the table | ||
| default | minimum col value of the merged range | |
| accepts | numeric(1) | |
| console | Recognized | |
| markdown | Recognized | |
| html | Recognized | |
| latex | Recognized | |
| na_string | ||
| action | Designates the character string to use in place | |
| of missing values | ||
| default | NA | |
| accepts | character(1) | |
| console | Recognized | |
| markdown | Recognized | |
| html | Recognized | |
| latex | Recognized | |
| pad | ||
| action | Designates the padding to place between cell | |
| text and boundaries | ||
| Measured in pixels. | ||
| default | 0 | |
| accepts | numeric(1) | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Not recognized | |
| replace | ||
| action | Replaces existing cell values with user-specified | |
| content. Replacement occurs moving down columns | ||
| from left to right. | ||
| default | ||
| accepts | character vector of the same length as the number | |
| of cells being replaced. | ||
| console | Recognized | |
| markdown | Recognized | |
| html | Recognized | |
| latex | Recognized | |
| rotate_degree | ||
| action | Rotates text in cells by the designated angle | |
| in degrees | ||
| default | ||
| accepts | numeric(1) | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognized | |
| round | ||
| action | Applies the `round` function to values in the | |
| cell. Skips any character values it encounters. | ||
| default | getOption("digits") | |
| accepts | numeric(1) | |
| console | Recognized | |
| markdown | Recognized | |
| html | Recognized | |
| latex | Recognized | |
| sanitize | ||
| action | Sanitizes character values that may cause | |
| difficulties for the rendered format. | ||
| default | FALSE | |
| accepts | logical(1) | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Not recognized | |
| latex | Recognized. Sanitization is performed using | |
| latexTranslate | ||
| sanitize_args | ||
| action | Passes additional arguments to latexTranslate | |
| default | list() | |
| accepts | list.  See documentation for latexTranslate | |
| for details | ||
| console | Not recognized | |
| markdown | Not recognized | |
| html | Not recognized | |
| latex | Recognized | |
| tabcolsep | ||
| action | Modifies the LaTeX `tabcolsep` parameter of tables | |
| This is similar to `pad` for HTML tables, but only | ||
| affects the space between columns. Measured in "pt" | ||
| default | 6 | |
| accepts | numeric(1) | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Not recognized | |
| latex | Recognized | |
| valign | ||
| action | Designates the vertical alignment of a cell. | |
| default | ||
| accepts | "top", "middle", "bottom" | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognized | |
| width | ||
| action | Sets the width of the cell | |
| default | ||
| accepts | numeric(1) | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognized | |
| width_units | ||
| action | Determines the units in which `width` is measured | |
| default | "pt" | |
| accepts | "px", "pt", "cm", "in", "%" | |
| console | Not recognized | |
| markdown | Not recognized | |
| html | Recognized | |
| latex | Recognized; "px" is coerced to "pt" | |
Longtable
The longtable feature is named for the LaTeX package used to break very large 
tables into multiple pages.  
When using the longtable=TRUE option, the default number of rows per table is 25 for 
console, HTML, and markdown output.  For LaTeX output, the number of rows is determined by 
the LaTeX longtable package's algorithm. The number of rows per table only considers 
the content in the body of the table.  Consideration for the number of rows in the head and 
foot are the responsibility of the user.
Whenever a table is broken into multiple parts, each part retains the table head.  If any 
interfoot is provided, it is appended to the bottom of each section, with the 
exception of the last section.  The last section has the foot appended.
Colors
Colors may be declared as any of the color names in colors(), 
as rgb character strings such as "rgb(rrr,ggg,bbb)" or as 
hexadecimal character strings such as "#rrggbb".  
Transparency is also recognized by HTML output, and may be indicated 
in the rgba format "rgba(rrr,ggg,bbb,aa)", where aa is a 
number between 0 and 1, inclusive.  Alternative, transparency may be 
given as "#rrggbbAA", where AA is a hexadecimal 
representation of transparency with "00" being completely transparent 
and "FF" being completely opaque.
LaTeX output does not recognize transparency and will quietly drop the transparency parameter.
All colors are internally translated into rgb format and are case insensitive.
Required LaTeX Packages
If you will be using the LaTeX output, some sprinkles will require you 
to include additional LaTeX packages in your document preamble.  In 
.Rnw files, additional packages can be included with the 
\usepackage{[package]} syntax.  In markdown, additional packages
are included using header-includes: in the YAML front matter with 
a line of the format \usepackage{[package]} for each package to 
be used.  Sprinkles that require additional packages, and the LaTeX packages
required, are listed below:
| Sprinkle | LaTeX Package(s) | 
| font_color | \usepackage[dvipsnames]{xcolor} | 
| bg, bg_pattern | \usepackage[dvipsnames,table]{xcolor} | 
| border_style | \usepackage{arydshln} | 
| \usepackage{amssymb} | |
| \usepackage{hhline} | |
| (with vertical dashed lines) | \usepackage{graphicx} | 
| \makeatletter | |
| \newcommand*\vdashline{\rotatebox[origin=c]{90}{\$\dabar@\dabar@\dabar@\$}} | |
| \makeatother | |
| longtable | \usepackage{longtable} | 
| (Must be loaded before arydshln) | |
| merge | \usepackage{multirow} | 
| captionsfor non floats | \usepackage{caption} | 
Note that hhline is used to make horizontal lines when 
options(pixiedust_latex_hhline = TRUE) (the package default is FALSE), 
otherwise the cline command is used.  
Use of cline permits colored borders and dashed borders, but 
borders around cells with background colors are sometimes (often) lost.
Use of hhline preserves borders around cells with background colors 
and permits double borders, but colored and dashed borders are not available.
In order to ensure all features are available, the recommended code block (accounting for the proper order to load packages) is:
header-includes: 
 - \usepackage{amssymb} 
 - \usepackage{arydshln} 
 - \usepackage{caption}  
 - \usepackage{graphicx} 
 - \usepackage{hhline} 
 - \usepackage{longtable} 
 - \usepackage{multirow} 
 - \usepackage[dvipsnames,table]{xcolor} 
 - \makeatletter 
 - \newcommand*\vdashline{\rotatebox[origin=c]{90}{\$\dabar@\dabar@\dabar@\$}} 
 - \makeatother
Author(s)
Benjamin Nutter
Source
Altering the number of rows in a LaTeX longtable 
http://tex.stackexchange.com/questions/19710/how-can-i-set-the-maximum-number-of-rows-in-a-page-for-longtable
Vertical dashed cell borders in LaTeX table 
http://www.latex-community.org/forum/viewtopic.php?f=45&t=3149
Colored Cell border 
http://tex.stackexchange.com/questions/40666/how-to-change-line-color-in-tabular
See Also
sprinkle_colnames for changing column names in a table.
Examples
x <- dust(lm(mpg ~ qsec + factor(am), data = mtcars))
x %>% sprinkle(cols = 2:4, round = 3) %>% 
  sprinkle(cols = 5, fn = quote(pvalString(value))) %>% 
  sprinkle(rows = 2, bold = TRUE)
Sprinkle Alignment of Table Cells
Description
The alignment refers to the positioning of the text within a cell. Alignment may be given relative to the left, center, or right of a cell, and the top, middle, or bottom of the cell.
Usage
sprinkle_align(
  x,
  rows = NULL,
  cols = NULL,
  halign = NULL,
  valign = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## Default S3 method:
sprinkle_align(
  x,
  rows = NULL,
  cols = NULL,
  halign = NULL,
  valign = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## S3 method for class 'dust_list'
sprinkle_align(
  x,
  rows = NULL,
  cols = NULL,
  halign = NULL,
  valign = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
Arguments
| x | An object of class  | 
| rows | Either a numeric vector of rows in the tabular object to be 
modified or an object of class  | 
| cols | Either a numeric vector of columns in the tabular object to be modified, or a character vector of column names. A mixture of character and numeric indices is permissible. | 
| halign | 
 | 
| valign | 
 | 
| part | A character string denoting which part of the table to modify. | 
| fixed | 
 | 
| recycle | A  | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Functional Requirements
- Correctly reassigns the appropriate elements of - halignand- valigncolumns in the table part.
- Casts an error if - xis not a- dustobject.
- Casts an error if - halignis not a- character
- Casts an error if - partis not one of- "body",- "head",- "foot", or- "interfoot"
- Casts an error if - fixedis not a- logical(1)
- Casts an error if - recycleis not one of- "none",- "rows", or- "cols"
- Casts an error if - valignis not a- character
- Cast an error if - recycle = "none"and- haligndoes not have length 1.
- Cast an error if - recycle = "none"and- valigndoes not have length 1.
- Cast an error if - halignis not one of- c("left", "center", "right")
- Cast an error if - valignis not one of- c("top", "middle", "bottom")
The functional behavior of the fixed and recycle arguments 
is not tested for this function. It is tested and validated in the
tests for index_to_sprinkle.
See Also
Sprinkle the Background Color of a Cell
Description
Background colors may be used to highlight the contents 
of cells, rows, or columns.  Most commonly, backgrounds are used to
provide row discrimination; the sprinkle_bg_pattern function
is better suited to that purpose.
Usage
sprinkle_bg(
  x,
  rows = NULL,
  cols = NULL,
  bg = "",
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## Default S3 method:
sprinkle_bg(
  x,
  rows = NULL,
  cols = NULL,
  bg = "",
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## S3 method for class 'dust_list'
sprinkle_bg(
  x,
  rows = NULL,
  cols = NULL,
  bg = "",
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
sprinkle_background(
  x,
  rows = NULL,
  cols = NULL,
  bg = "",
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
Arguments
| x | An object of class  | 
| rows | Either a numeric vector of rows in the tabular object to be 
modified or an object of class  | 
| cols | Either a numeric vector of columns in the tabular object to be modified, or a character vector of column names. A mixture of character and numeric indices is permissible. | 
| bg | 
 | 
| part | A character string denoting which part of the table to modify. | 
| fixed | 
 | 
| recycle | A  | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
Colors may be a dvips color name, or in the rgb(R, G, B), rgba(R, G, B, A), #RRGGBB, or #RRGGBBAA formats.
This sprinkle is ignored in console and markdown outputs. HTML output will accept any of the color formats and recognize transparency. LaTeX output will accept any of the color formats but ignore transparency.
As long as bg is required to be a character(1), the 
recycle argument is kind of useless. It is included to maintain
consistency with the index_to_sprinkle function. Future development
may permit a character vector of colors.
Functional Requirements
- Correctly reassigns the appropriate elements - bgcolumn in the table part.
- Casts an error if - xis not a- dustobject.
- Casts an error if - bgis not a- character(1)
- Casts an error if - bgis not a valid color format.
- Casts an error if - partis not one of- "body",- "head",- "foot", or- "interfoot"
- Casts an error if - fixedis not a- logical(1)
- Casts an error if - recycleis not one of- "none",- "rows", or- "cols"
- Casts an error if - recycle = "none"and- bgdoes not have length 1.
The functional behavior of the fixed and recycle arguments 
is not tested for this function. It is tested and validated in the
tests for index_to_sprinkle.
Author(s)
Benjamin Nutter
See Also
sprinkle, sprinkle_bg_pattern, 
index_to_sprinkle
Row and Column Background Striping
Description
Provides background color striping based on row or column. Striping may be done with any number of colors. The most common use of striping is to provide row discrimination in tables.
Usage
sprinkle_bg_pattern(
  x,
  rows = NULL,
  cols = NULL,
  bg_pattern = c("transparent", "#DCDCDC"),
  bg_pattern_by = c("rows", "cols"),
  ...,
  part = c("body", "head", "foot", "interoot", "table")
)
## Default S3 method:
sprinkle_bg_pattern(
  x,
  rows = NULL,
  cols = NULL,
  bg_pattern = c("transparent", "#DCDCDC"),
  bg_pattern_by = c("rows", "cols"),
  ...,
  part = c("body", "head", "foot", "interfoot", "table")
)
## S3 method for class 'dust_list'
sprinkle_bg_pattern(
  x,
  rows = NULL,
  cols = NULL,
  bg_pattern = c("transparent", "#DCDCDC"),
  bg_pattern_by = c("rows", "cols"),
  ...,
  part = c("body", "head", "foot", "interfoot", "table")
)
Arguments
| x | An object of class  | 
| rows | Either a numeric vector of rows in the tabular object to be 
modified or an object of class  | 
| cols | Either a numeric vector of columns in the tabular object to be modified, or a character vector of column names. A mixture of character and numeric indices is permissible. | 
| bg_pattern | A character vector giving the colors to be iterated in the pattern. | 
| bg_pattern_by | A subset of  | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
| part | A character string denoting which part of the table to modify. | 
Functional Requirements
- Correctly reassigns the appropriate elements - bgcolumn in the table part.
- Casts an error if - xis not a- dustobject.
- Casts an error if - bg_patternis not a character vector.
- Casts an error if any element in - bg_patternis not a valid color name.
- Casts an error if - bg_pattern_byis not a subset of- c("rows", "columns")(with partial matching).
- Casts an error if - partis not one of- "body",- "head",- "foot", or- "interfoot"
This is a rare sprinkle that doesn't use the fixed and recycle
arguments.  They are assumed to be FALSE and "none", 
respectively, in order to pass through index_to_sprinkle.
See Also
sprinkle_bg, sprinkle, 
index_to_sprinkle
Change the Bookdown Property in a Dust Table
Description
Tables built for the bookdown package can be referenced
in a manner that is consistent between HTML and LaTeX documents.
Usage
sprinkle_bookdown(x, bookdown = getOption("pixie_bookdown", FALSE), ...)
## Default S3 method:
sprinkle_bookdown(x, bookdown = getOption("pixie_bookdown", FALSE), ...)
## S3 method for class 'dust_list'
sprinkle_bookdown(x, bookdown = getOption("pixie_bookdown", FALSE), ...)
Arguments
| x | An object of class  | 
| bookdown | 
 | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
bookdown is a package that facilitates the writing of books.
One of the advantages of bookdown is the ability to reference 
tables in a manner similar to LaTeX. The key difference in how 
pixiedust handles output is the reference specification. See 
https://bookdown.org/yihui/bookdown/tables.html for details on how
bookdown uses labels and references.
Functional Requirements
- Change the - bookdownattribute of the- dustobject.
- Cast an error if - xis not a- dustobject.
- Cast an error if - bookdownis not a logical object.
- Cast an error if - bookdownhas length greater than 1.
Author(s)
Benjamin Nutter
Source
https://bookdown.org/yihui/bookdown/tables.html
See Also
Sprinkle Changes to Cell Borders
Description
Cell borders may be used to give visual structure to a table. Borders may generate distinction between sets of results, groups, or types of output.
Usage
sprinkle_border(
  x,
  rows,
  cols,
  border = c("all", "bottom", "left", "top", "right"),
  border_color = "black",
  border_style = "solid",
  border_thickness = 1,
  border_units = c("pt", "px"),
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## Default S3 method:
sprinkle_border(
  x,
  rows = NULL,
  cols = NULL,
  border = c("all", "bottom", "left", "top", "right"),
  border_color = "black",
  border_style = "solid",
  border_thickness = 1,
  border_units = c("pt", "px"),
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## S3 method for class 'dust_list'
sprinkle_border(
  x,
  rows = NULL,
  cols = NULL,
  border = c("all", "bottom", "left", "top", "right"),
  border_color = "black",
  border_style = "solid",
  border_thickness = 1,
  border_units = c("pt", "px"),
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
Arguments
| x | An object of class  | 
| rows | Either a numeric vector of rows in the tabular object to be 
modified or an object of class  | 
| cols | Either a numeric vector of columns in the tabular object to be modified, or a character vector of column names. A mixture of character and numeric indices is permissible. | 
| border | One or more of  | 
| border_color | 
 | 
| border_style | 
 | 
| border_thickness | 
 | 
| border_units | 
 | 
| part | A character string denoting which part of the table to modify. | 
| fixed | 
 | 
| recycle | A  | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
This sprinkle has no effect on console and markdown output.
HTML output accepts all of the possible values of border_style.
For LaTeX output, when hhline = FALSE, "solid", "dashed",
"dotted", "hidden", and "none" are accepted.  
"dotted" will silently be treated as "dashed", and 
"hidden" is the equivalent of "none".
For LaTeX output when hhline = TRUE, "solid", "double",
"hidden", and "none" are accepted.  "hidden" is the
equivalent of "none".
When a value of border_style is not recognized by an output format, 
it is silently ignored.
Functional Requirements
- Correctly reassigns the - left_border,- right_border,- top_borderand- bottom_bordercolumns in the table part.
- Casts an error if - xis not a- dustobject.
- Casts an error if any element of - borderis not one of- "all",- "bottom",- "left",- "top", or- "right".
- Casts an error if - border_coloris not a- character(1)
- Casts an error if - border_coloris not a valid color format.
- Casts an error if - border_styleis not one of- "solid",- "dashed",- "dotted",- "double",- "groove",- "ridge",- "inset",- "outset",- "hidden",- "none"
- Casts an error if - border_thicknessis not a- numeric(1).
- Casts an error if - border_unitsis not one of- "pt"or- "px".
- Casts an error if - partis not one of- "body",- "head",- "foot", or- "interfoot"
- Casts an error if - fixedis not a- logical(1)
- Casts an error if - recycleis not one of- "none",- "rows", or- "cols"
- Cast an error if - recycle = "none"and- border_colordoes not have length 1.
- Cast an error if - recycle = "none"and- border_styledoes not have length 1.
- Cast an error if - recycle = "none"and- border_thicknessdoes not have length 1.
- Quietly restrict - border_unitsto just the first element if is has length > 1 and- recycle = "none".
Author(s)
Benjamin Nutter
See Also
Change the Border Collapse Property in a Dust Table
Description
The border_collapse property controls the appearance of 
cell borders in HTML tables.  Be default, pixiedust collapses 
the borders so that the adjoining border of two cells appear as a 
single border.
Usage
sprinkle_border_collapse(
  x,
  border_collapse = getOption("pixie_border_collapse", "collapse"),
  ...
)
## Default S3 method:
sprinkle_border_collapse(
  x,
  border_collapse = getOption("pixie_border_collapse", "collapse"),
  ...
)
## S3 method for class 'dust_list'
sprinkle_border_collapse(
  x,
  border_collapse = getOption("pixie_border_collapse", "collapse"),
  ...
)
Arguments
| x | An object of class  | 
| border_collapse | 
 | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
See https://www.w3schools.com/cssref/pr_border-collapse.asp for details on how each option affects the appearance of a table.
This property has no effect on non-HTML output.
Functional Requirements
- Change the - border_collapseattribute of the- dustobject.
- Cast an error if - xis not a- dustobject.
- Cast an error if - border_collapseis not one of- "collapse",- "separate",- "initial",- "inherit".
Author(s)
Benjamin Nutter
Source
https://www.w3schools.com/cssref/pr_border-collapse.asp
See Also
Change the Caption in a Dust Table
Description
The table caption is often used as a brief title, but may also be used to provide a longer statement explaining how to interpret the table results.
Usage
sprinkle_caption(x, caption, ...)
## Default S3 method:
sprinkle_caption(x, caption, ...)
## S3 method for class 'dust_list'
sprinkle_caption(x, caption, ...)
Arguments
| x | An object of class  | 
| caption | 
 | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
The caption may be set during the initial dust call.  This
method allows for modification afterward, such as in the case of when a 
dust object is loaded from memory and the initial call cannot be
accessed.
Functional Requirements
- Change the - captionattribute of the- dustobject.
- Cast an error if - xis not a- dustobject.
- Cast an error if - captionis not a character object.
- Cast an error if - captionhas length greater than 1.
Author(s)
Benjamin Nutter
See Also
Change the Caption in a Dust Table
Description
The table caption is often used as a brief title, but may also be used to provide a longer statement explaining how to interpret the table results.
Usage
sprinkle_caption_number(x, caption_number, ...)
## Default S3 method:
sprinkle_caption_number(
  x,
  caption_number = getOption("pixie_caption_number", TRUE),
  ...
)
## S3 method for class 'dust_list'
sprinkle_caption_number(
  x,
  caption_number = getOption("pixie_caption_number", TRUE),
  ...
)
Arguments
| x | An object of class  | 
| caption_number | 
 | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
Table numbering makes it possible to reference tables within a document. In some cases, the numbering is not desired. Suppressing numbering may restrict the ability to make reference to the table.
Functional Requirements
- Change the - caption_numberattribute of the- dustobject.
- Cast an error if - xis not a- dustobject.
- Cast an error if - caption_numberis not a logical object.
- Cast an error if - caption_numberhas length greater than 1.
Author(s)
Benjamin Nutter
See Also
Column Names for dust Tables
Description
Assigns new column names to a table
Usage
sprinkle_colnames(x, ...)
## Default S3 method:
sprinkle_colnames(x, ...)
## S3 method for class 'dust_list'
sprinkle_colnames(x, ...)
Arguments
| x | A dust object. | 
| ... | Column names for the table. See 'Input Formats' | 
Input Formats
- named arguments Using - dust_colnames(term = "Term", estimate = "Estimate"), column names may be passed for all or a subset of the columns. The existing column name will be matched against the argument name.
- unnamed arguments Using - dust_colnames("Term", "Estimate", "SE", ...), column names may be passed for all of the columns. If the arguments are unnamed, the number of arguments passed must match the number of columns in the table.
When using named arguments (or a named vector), you may not mix named and unnamed elements. In other words, if one element is named, they must all be named. Unnamed elements are assigned to columns in sequential order.
Author(s)
Benjamin Nutter
See Also
Examples
x <- dust(lm(mpg ~ qsec + factor(am), data = mtcars)) 
x
x %>% sprinkle_colnames(term = "Term", statistic = "T")
x %>% sprinkle_colnames("Term", "Estimate", "SE", "T-statistic", "p-value")
## Not run: 
# Causes an error due to too few unnamed arguments
x %>% sprinkle_colnames("Term", "Estimate")
## End(Not run)
Change Color Features by Discrete Values
Description
Distinct values within a range will be assigned a color and the designated attribute of the table will be modified accordingly.
Usage
sprinkle_discrete(
  x,
  rows = NULL,
  cols = NULL,
  discrete = "bg",
  discrete_colors = getOption("pixie_discrete_pal", NULL),
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## Default S3 method:
sprinkle_discrete(
  x,
  rows = NULL,
  cols = NULL,
  discrete = "bg",
  discrete_colors = getOption("pixie_discrete_pal", NULL),
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## S3 method for class 'dust_list'
sprinkle_discrete(
  x,
  rows = NULL,
  cols = NULL,
  discrete = "bg",
  discrete_colors = getOption("pixie_discrete_pal", NULL),
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
Arguments
| x | An object of class  | 
| rows | Either a numeric vector of rows in the tabular object to be 
modified or an object of class  | 
| cols | Either a numeric vector of columns in the tabular object to be modified, or a character vector of column names. A mixture of character and numeric indices is permissible. | 
| discrete | 
 | 
| discrete_colors | 
 | 
| part | A character string denoting which part of the table to modify. | 
| fixed | 
 | 
| recycle | A  | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
This sprinkle is only recognized by HTML and LaTeX.  All of the 
height_units values are recognized by HTML.  For LaTeX, "px"
is converted to "pt". 
"font" and "font_color" both change the font color.
"border" is a shortcut to specify all borders.
Functional Requirements
- Correctly reassigns the appropriate elements of the - bg,- font_color,- left_border,- top_border,- right_border, or- bottom_bordercolumn in the table part.
- Casts an error if - xis not a- dustobject.
- Casts an error if - discreteis not a subset of- c("bg", "font", "font_color", "border", "left_border", "right_border", "top_border", "bottom_border")
- Casts an error if - discrete_colorsis not a- charactervalue.
- Casts an error if any value of - discrete_colorsis not a recognized color value.
- Casts an error if - partis not one of- "body",- "head",- "foot", or- "interfoot"
- Casts an error if - fixedis not a- logical(1)
- Casts an error if - recycleis not one of- "none",- "rows", or- "cols"
The functional behavior of the fixed and recycle arguments 
is not tested for this function. It is tested and validated in the
tests for index_to_sprinkle.
See Also
Assign a Fixed Header to an HTML Table
Description
Long tables to be displayed on-screen may benefit by keeping the header fixed in position while scrolling through the body of the table. This allows the user to maintain visual contact between the column name and the data.
Usage
sprinkle_fixed_header(
  x,
  fixed_header = TRUE,
  include_fixed_header_css = TRUE,
  fixed_header_class_name = "pixie-fixed",
  scroll_body_height = 300,
  scroll_body_height_units = "px",
  scroll_body_background_color = "white",
  fixed_header_height = 20,
  fixed_header_height_units = "px",
  fixed_header_text_height = fixed_header_height/2,
  fixed_header_text_height_units = "px",
  fixed_header_background_color = "white",
  ...
)
## Default S3 method:
sprinkle_fixed_header(
  x,
  fixed_header = TRUE,
  include_fixed_header_css = TRUE,
  fixed_header_class_name = "pixie-fixed",
  scroll_body_height = 300,
  scroll_body_height_units = "px",
  scroll_body_background_color = "white",
  fixed_header_height = 20,
  fixed_header_height_units = "px",
  fixed_header_text_height = fixed_header_height/2,
  fixed_header_text_height_units = "px",
  fixed_header_background_color = "white",
  ...
)
## S3 method for class 'dust_list'
sprinkle_fixed_header(
  x,
  fixed_header = TRUE,
  include_fixed_header_css = TRUE,
  fixed_header_class_name = "pixie-fixed",
  scroll_body_height = 300,
  scroll_body_height_units = "px",
  scroll_body_background_color = "white",
  fixed_header_height = 20,
  fixed_header_height_units = "px",
  fixed_header_text_height = fixed_header_height/2,
  fixed_header_text_height_units = "px",
  fixed_header_background_color = "white",
  ...
)
Arguments
| x | An object of class  | 
| fixed_header | 
 | 
| include_fixed_header_css | 
 | 
| fixed_header_class_name | 
 | 
| scroll_body_height | 
 | 
| scroll_body_height_units | 
 | 
| scroll_body_background_color | 
 | 
| fixed_header_height | 
 | 
| fixed_header_height_units | 
 | 
| fixed_header_text_height | 
 | 
| fixed_header_text_height_units | 
 | 
| fixed_header_background_color | 
 | 
| ... | Arguments to pass to other methods. | 
Details
CSS doesn't make this kind of table natural.  The solution to 
generate the fixed headers used by pixiedust is probably not the 
best solution in terms of CSS design.  It is, however, the most conducive 
to generating dynamically on the fly. 
The fixed header table requires nesting several HTML elements.
- a - divtag is used to control the alignment of the table
- a - sectiontag is used to set up the header row that remains fixed.
- a - divthat sets the height of the scrollable body
- the - tabletag establishes the actual table.
- The - thtags inside the table are set to full transparency and the content of the headers is duplicated in a- divwithin the- thtag to display the content.
To accomplish these tasks, some CSS is exported with the table and placed in the document immediately before the table. Read further to understand the conflicts that may arise if you are using custom CSS specifications in your documents.
Avoiding CSS Conflicts
Because of all of the shenanigans involved, exporting the CSS with the tables
may result in conflicts with your custom CSS. Most importantly, any CSS
you have applied to the th or td tags may be overwritten.
If you are using custom CSS, you may want to consider using 
include_fixed_header_css = FALSE and then utilizing 
fixed_header_css to generate CSS you can include in your 
CSS file to provide the fixed headers.  The code generated by 
fixed_header_css ought to be placed before your definitions for
td and th.  
To get the same header design in the fixed table, you will want to modify 
the .th-pixie-fixed div definition in the CSS to match your desired
th definition.
The code produced by fixed_header_css will include comments where
there is potential for a CSS conflict.
Functional Requirements
- Set the - fixed_headerelement of the- dustobject correctly.
- Set the - include_fixed_header_csselement of the- dustobject correctly.
- Set the - fixed_header_paramelement of the- dustobject correctly.
- Cast an error if - xdoes not inherit class- dust
- Cast an error if - scroll_body_heightis not- integerish(1)
- Cast an error if - scroll_body_height_unitsis not- character(1)
- Cast an error if - scroll_body_background_coloris not- character(1)
- Cast an error if - scroll_body_background_coloris not a valid color.
- Cast an error if - fixed_header_heightis not- integerish(1)
- Cast an error if - fixed_header_height_unitsis not- character(1)
- Cast an error if - fixed_header_text_heightis not- numeric(1)
- Cast an error if - fixed_header_text_height_unitsis not- character(1)
- Cast an error if - fixed_header_background_coloris not- character(1)
- Cast an error if - fixed_header_background_coloris not a valid color.
- Cast an error if - include_fixed_header_cssis not- logical(1)
- Cast an error if - fixed_header_class_nameis not- character(1)
Change the float Property in a Dust Table
Description
Alter the floating behavior of tables rendered in 
LaTeX documents.  Floating tables are moved to a position deemed ideal 
by the typesetter.  Setting float = FALSE causes the table to 
be rendered in the position in which it is generated in the code.
Usage
sprinkle_float(x, float = getOption("pixie_float", FALSE), ...)
## Default S3 method:
sprinkle_float(x, float = getOption("pixie_float", FALSE), ...)
## S3 method for class 'dust_list'
sprinkle_float(x, float = getOption("pixie_float", FALSE), ...)
Arguments
| x | An object of class  | 
| float | 
 | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
See https://en.wikibooks.org/wiki/LaTeX/Floats,_Figures_and_Captions for more about floating environments in LaTeX.
This property has no effect on non-LaTeX output.
Functional Requirements
- Change the - floatattribute of the- dustobject.
- Cast an error if - xis not a- dustobject.
- Cast an error if - floatis not logical or length 1.
Author(s)
Benjamin Nutter
Source
https://en.wikibooks.org/wiki/LaTeX/Floats,_Figures_and_Captions
See Also
Apply a function to a selection of cells
Description
The pre-defined sprinkles do not always provide the desired impact on the tables. Applying a function allows for highly customized output without having to pre-process that data frame.
Usage
sprinkle_fn(
  x,
  rows = NULL,
  cols = NULL,
  fn = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols"),
  ...
)
## Default S3 method:
sprinkle_fn(
  x,
  rows = NULL,
  cols = NULL,
  fn = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## S3 method for class 'dust_list'
sprinkle_fn(
  x,
  rows = NULL,
  cols = NULL,
  fn = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
Arguments
| x | An object of class  | 
| rows | Either a numeric vector of rows in the tabular object to be 
modified or an object of class  | 
| cols | Either a numeric vector of columns in the tabular object to be modified, or a character vector of column names. A mixture of character and numeric indices is permissible. | 
| fn | An object of class  | 
| part | A character string denoting which part of the table to modify. | 
| fixed | 
 | 
| recycle | A  | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
dust objects transform tabular objects so that each cell
in the table comprises one row in the data frame of cell attributes.  
The function to be applied needs to act on the value column of
that data frame.
Functional Requirements
- Correctly reassigns the appropriate elements - fncolumn in the table part.
- Casts an error if - xis not a- dustobject.
- Casts an error if - fnis not a- callobject.
- Casts an error if - partis not one of- "body",- "head",- "foot", or- "interfoot"
- Casts an error if - fixedis not a- logical(1)
- Casts an error if - recycleis not one of- "none",- "rows", or- "cols"
Author(s)
Benjamin Nutter
Sprinkle the Characteristics of Text in a Cell
Description
Text can be made to stand out (or fade away) by using font features such as bold and italic text, color, size, or different fonts.
Usage
sprinkle_font(
  x,
  rows = NULL,
  cols = NULL,
  bold = NULL,
  italic = NULL,
  font_size = NULL,
  font_size_units = NULL,
  font_color = NULL,
  font_family = NULL,
  ...,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = "none"
)
## Default S3 method:
sprinkle_font(
  x,
  rows = NULL,
  cols = NULL,
  bold = NULL,
  italic = NULL,
  font_size = NULL,
  font_size_units = NULL,
  font_color = NULL,
  font_family = NULL,
  ...,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = "none"
)
## S3 method for class 'dust_list'
sprinkle_font(
  x,
  rows = NULL,
  cols = NULL,
  bold = NULL,
  italic = NULL,
  font_size = NULL,
  font_size_units = NULL,
  font_color = NULL,
  font_family = NULL,
  ...,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = "none"
)
Arguments
| x | An object of class  | 
| rows | Either a numeric vector of rows in the tabular object to be 
modified or an object of class  | 
| cols | Either a numeric vector of columns in the tabular object to be modified, or a character vector of column names. A mixture of character and numeric indices is permissible. | 
| bold | 
 | 
| italic | 
 | 
| font_size | 
 | 
| font_size_units | 
 | 
| font_color | 
 | 
| font_family | 
 | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
| part | A character string denoting which part of the table to modify. | 
| fixed | 
 | 
| recycle | A  | 
Details
The bold and italic features are recognized by all 
formats.  
Font size features are recognized by HTML and LaTeX. LaTeX only recognizes 
the font size unit options of "pt" and "em", but will quietly
change "px" to "pt" when printing.
Font color features are recognized by HTML and LaTeX.
Font family is only recognized by HTML.
Functional Requirements
- Correctly change the - boldcolumn of the table part for the selected cells.
- Correctly change the - italiccolumn of the table part for the selected cells.
- Correctly change the - font_sizecolumn of the table part for the selected cells.
- Correctly change the - font_size_unitscolumn of the table part for the selected cells.
- Correctly chagne the - font_colorcolumn of the table part for the selected cells.
- Correctly change the - font_familycolumn of the table part for the selected cells.
- Cast an error if - xis not a dust object.
- Cast an error if - boldis not- logical(1)
- Cast an error if - italicis not- logical(1)
- Cast an error if - font_sizeis not- numeric(1)
- Cast an error if - font_size_unitsis not- character(1)
- Cast an error if - font_size_unitsis not one of px, pt, em, or
- Cast an error if - font_coloris not- character(1)
- Cast an error if - font_familyis not- character(1)
- Cast an error if - partis not a subset of- c("body", "head", "foot", "interfoot")
- Cast an error if - recycle = "none"and- bolddoes not have length 1.
- Cast an error if - recycle = "none"and- italicdoes not have length 1.
- Cast an error if - recycle = "none"and- font_sizedoes not have length 1.
- Cast an error if - recycle = "none"and- font_size_unitsdoes not have length 1.
- Cast an error if - recycle = "none"and- font_colordoes not have length 1.
- Cast an error if - recycle = "none"and- font_familydoes not have length 1.
The functional behavior of the fixed and recycle arguments 
is not tested for this function. It is tested and validated in the
tests for index_to_sprinkle.
Author(s)
Benjamin Nutter
See Also
Change Color Features by Binning Numeric Values
Description
Numeric values within a range of cells are binned and colors assigned to show gradual increases in the numeric value.
Usage
sprinkle_gradient(
  x,
  rows = NULL,
  cols = NULL,
  gradient = "bg",
  gradient_colors = getOption("pixie_gradient_pal", NULL),
  gradient_cut = NULL,
  gradient_n = 10,
  gradient_na = "grey",
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## Default S3 method:
sprinkle_gradient(
  x,
  rows = NULL,
  cols = NULL,
  gradient = "bg",
  gradient_colors = getOption("pixie_gradient_pal", c("#132B43", "#56B1F7")),
  gradient_cut = NULL,
  gradient_n = 10,
  gradient_na = "grey",
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## S3 method for class 'dust_list'
sprinkle_gradient(
  x,
  rows = NULL,
  cols = NULL,
  gradient = "bg",
  gradient_colors = getOption("pixie_gradient_pal", c("#132B43", "#56B1F7")),
  gradient_cut = NULL,
  gradient_n = 10,
  gradient_na = "grey",
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
Arguments
| x | An object of class  | 
| rows | Either a numeric vector of rows in the tabular object to be 
modified or an object of class  | 
| cols | Either a numeric vector of columns in the tabular object to be modified, or a character vector of column names. A mixture of character and numeric indices is permissible. | 
| gradient | 
 | 
| gradient_colors | 
 | 
| gradient_cut | 
 | 
| gradient_n | 
 | 
| gradient_na | 
 | 
| part | A character string denoting which part of the table to modify. | 
| fixed | 
 | 
| recycle | A  | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
This sprinkle is only recognized by HTML and LaTeX.  All of the 
height_units values are recognized by HTML.  For LaTeX, "px"
is converted to "pt". 
"font" and "font_color" both change the font color.
"border" is a shortcut to specify all borders.
Functional Requirements
- Correctly reassigns the appropriate elements of the - bg,- font_color,- left_border,- top_border,- right_border, or- bottom_bordercolumn in the table part.
- Casts an error if - xis not a- dustobject.
- Casts an error if - gradientis not a subset of- c("bg", "font", "font_color", "border", "left_border", "right_border", "top_border", "bottom_border")
- Casts an error if - gradient_colorsis not a- character(2)value.
- Casts an error if any value of - gradient_colorsis not a recognized color value.
- Casts an error if - gradient_cutis not- numeric.
- Casts an error if - gradient_nis not- numeric(1).
- Casts an error if - gradient_nais not- character(1).
- Casts an error if - gradient_nais not a valid color.
- Casts an error if - partis not one of- "body",- "head",- "foot", or- "interfoot"
- Casts an error if - fixedis not a- logical(1)
- Casts an error if - recycleis not one of- "none",- "rows", or- "cols"
The functional behavior of the fixed and recycle arguments 
is not tested for this function. It is tested and validated in the
tests for index_to_sprinkle.
See Also
Adjust Table Cell Height
Description
Customize the height of a cell in a table. This may be done to improve the appearance of cells with long text.
Usage
sprinkle_height(
  x,
  rows = NULL,
  cols = NULL,
  height = NULL,
  height_units = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## Default S3 method:
sprinkle_height(
  x,
  rows = NULL,
  cols = NULL,
  height = NULL,
  height_units = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## S3 method for class 'dust_list'
sprinkle_height(
  x,
  rows = NULL,
  cols = NULL,
  height = NULL,
  height_units = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
Arguments
| x | An object of class  | 
| rows | Either a numeric vector of rows in the tabular object to be 
modified or an object of class  | 
| cols | Either a numeric vector of columns in the tabular object to be modified, or a character vector of column names. A mixture of character and numeric indices is permissible. | 
| height | 
 | 
| height_units | 
 | 
| part | A character string denoting which part of the table to modify. | 
| fixed | 
 | 
| recycle | A  | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
This sprinkle is only recognized by HTML and LaTeX.  All of the 
height_units values are recognized by HTML.  For LaTeX, "px"
is converted to "pt".
Functional Requirements
- Correctly reassigns the appropriate elements of - heightand- height_unitscolumns in the table part.
- Casts an error if - xis not a- dustobject.
- Casts an error if - heightis not a- numeric(1)
- Casts an error if - height_unitsis not a- character(1)
- Casts an error if - partis not one of- "body",- "head",- "foot", or- "interfoot"
- Casts an error if - fixedis not a- logical(1)
- Casts an error if - recycleis not one of- "none",- "rows", or- "cols"
- Cast an error if - recycle = "none"and- heightdoes not have length 1.
- When - recycle = "none", quietly coerce- height_unitsto just the first element given.
The functional behavior of the fixed and recycle arguments 
is not tested for this function. It is tested and validated in the
tests for index_to_sprinkle.
See Also
Change the hhline Property in a Dust Table
Description
The hhline property controls the appearance of 
cell borders in LaTeX tables.  There is a known limitation in the 
LaTeX colortbl package where cell borders can be hidden if
the cell has a background color.  If using both cell borders and
background colors, it is recommended that you use the hhline
property to make cell borders appear as desired.
Usage
sprinkle_hhline(x, hhline = getOption("pixie_hhline", FALSE), ...)
## Default S3 method:
sprinkle_hhline(x, hhline = getOption("pixie_hhline", FALSE), ...)
## S3 method for class 'dust_list'
sprinkle_hhline(x, hhline = getOption("pixie_hhline", FALSE), ...)
Arguments
| x | An object of class  | 
| hhline | 
 | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
When hhline = TRUE, borders will be solid; dashed and dotted
borders are unsupported by hhline.
This property has no effect on non-LaTeX output.
Functional Requirements
- Change the - hhlineattribute of the- dustobject.
- Cast an error if - xis not a- dustobject.
- Cast an error if - hhlineis not logical and length 1.
Author(s)
Benjamin Nutter
Source
https://www.ctan.org/pkg/hhline?lang=en
See Also
Change the HTML Preserve Property in a Dust Table
Description
By default pixiedust makes use of htmltools::htmlPreserve
to prevent certain symbols from rendering in unintended ways based on some 
not-very-well-understood-by-the-author issues.  This property controls whether
the preservation is used or not.
Usage
sprinkle_html_preserve(
  x,
  html_preserve = getOption("pixie_html_preserve", TRUE),
  ...
)
## Default S3 method:
sprinkle_html_preserve(
  x,
  html_preserve = getOption("pixie_html_preserve", TRUE),
  ...
)
## S3 method for class 'dust_list'
sprinkle_html_preserve(
  x,
  html_preserve = getOption("pixie_html_preserve", TRUE),
  ...
)
Arguments
| x | An object of class  | 
| html_preserve | 
 | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Functional Requirements
- Change the - html_preserveattribute of the- dustobject.
- Cast an error if - xis not a- dustobject.
- Cast an error if - html_preserveis not logical(1).
Author(s)
Benjamin Nutter
See Also
Change the Caption in a Dust Table
Description
The justification of the table determines the horizontal placing of the table on the page.
Usage
sprinkle_justify(x, justify = getOption("pixie_justify", "center"), ...)
## Default S3 method:
sprinkle_justify(x, justify = getOption("pixie_justify", "center"), ...)
## S3 method for class 'dust_list'
sprinkle_justify(x, justify = getOption("pixie_justify", "center"), ...)
Arguments
| x | An object of class  | 
| justify | 
 | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
For HTML tables, the values "center", 
"left",  and "right" all justify the table as expected.
It is important to note, however, that "left" and "right" 
will cause subsequent elements to be rendered next to the table, not 
below it. To render the table with left alignment without this side 
effect, use "none".
In LaTeX output, both "right" and "left" justify 
to the left. This may change in the future if I find a resolution.  Using
"none" also results in left justification.
Functional Requirements
- Change the - justifyattribute of the- dustobject.
- Cast an error if - xis not a- dustobject.
- Cast an error if - justifyis not one of- "center",- "none",- "left", or- "right".
- Ignore capitalization of the - justifyargument.
Author(s)
Benjamin Nutter
See Also
Change the Border Collapse Property in a Dust Table
Description
The label property is used to make references to a 
table.  Labels may be used in LaTeX documents, or in both LaTeX and 
HTML documents when using bookdown.
Usage
sprinkle_label(x, label = NULL, ...)
## Default S3 method:
sprinkle_label(x, label = NULL, ...)
## S3 method for class 'dust_list'
sprinkle_label(x, label = NULL, ...)
Arguments
| x | An object of class  | 
| label | 
 | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
For details about using labels in LaTeX documents, see https://en.wikibooks.org/wiki/LaTeX/Labels_and_Cross-referencing.
For details about using labels in bookdown documents, see
https://bookdown.org/yihui/bookdown/tables.html
Functional Requirements
- Change the - labelattribute of the- dustobject.
- Cast an error if - xis not a- dustobject.
- Cast an error if - labelis not a- character(1).
Author(s)
Benjamin Nutter
Source
https://en.wikibooks.org/wiki/LaTeX/Labels_and_Cross-referencing
https://bookdown.org/yihui/bookdown/tables.html
See Also
Change the Longtable Property in a Dust Table
Description
The LaTeX longtable package allows for long tables
to be broken into multiple parts to be displayed on separate pages. 
pixiedust will mimic this behavior for other output types.
Usage
sprinkle_longtable(x, longtable = getOption("pixie_longtable", FALSE), ...)
## Default S3 method:
sprinkle_longtable(x, longtable = getOption("pixie_longtable", FALSE), ...)
## S3 method for class 'dust_list'
sprinkle_longtable(x, longtable = getOption("pixie_longtable", FALSE), ...)
Arguments
| x | An object of class  | 
| longtable | Either a  | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
When longtable = TRUE, LaTeX tables will be divided 
according to the LaTeX document settings.  In other table outputs, the 
default is to use 25 rows per table.
When longtable is an integer (or integer-like) value, the table 
is divided into that many rows per section. This applies to all output.
Functional Requirements
- Change the - longtableattribute of the- dustobject.
- Cast an error if - xis not a- dustobject.
- Cast an error if - longtableis logical and has length not equal to 1.
- when - longtableis not logical, cast an error if it is not-integerish and has length not equal to 1.
Author(s)
Benjamin Nutter
See Also
Sprinkle Table Cells to Merge
Description
Merging cells creates more space for values to be displayed without disrupting the appearance of other cells in the same row or column. The downside is that the content from only one of the cells in the merge range will be displayed.
Usage
sprinkle_merge(
  x,
  rows = NULL,
  cols = NULL,
  merge = FALSE,
  merge_rowval = NULL,
  merge_colval = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## Default S3 method:
sprinkle_merge(
  x,
  rows = NULL,
  cols = NULL,
  merge = FALSE,
  merge_rowval = NULL,
  merge_colval = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## S3 method for class 'dust_list'
sprinkle_merge(
  x,
  rows = NULL,
  cols = NULL,
  merge = FALSE,
  merge_rowval = NULL,
  merge_colval = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
Arguments
| x | An object of class  | 
| rows | Either a numeric vector of rows in the tabular object to be 
modified or an object of class  | 
| cols | Either a numeric vector of columns in the tabular object to be modified, or a character vector of column names. A mixture of character and numeric indices is permissible. | 
| merge | 
 | 
| merge_rowval | The row position of the cell whose content will be
displayed.  Defaults to the minimum of  | 
| merge_colval | The column position of the cell whose content will 
be displayed.  Deafults to the minimum of  | 
| part | A character string denoting which part of the table to modify. | 
| fixed | 
 | 
| recycle | A  | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Functional Requirements
- Correctly reassigns the appropriate elements of - merge,- merge_rowvaland- merge_colvalcolumns in the table part.
- Casts an error if - xis not a- dustobject.
- Casts an error if - mergeis not a- logical(1)
- Casts an error if - merge_rowvalis not a- numeric(1)
- Casts an error if - merge_colvalis not a- numeric(1)
- Casts an error if - partis not one of- "body",- "head",- "foot", or- "interfoot"
- Casts an error if - fixedis not a- logical(1)
- Casts an error if - recycleis not one of- "none",- "rows", or- "cols"
The functional behavior of the fixed and recycle arguments 
is not tested for this function. It is tested and validated in the
tests for index_to_sprinkle.
See Also
Sprinkle Appearance of NA's
Description
The appearance of NA values in a table may be dependent
on the context.  pixiedust uses the na_string sprinkle
to guide the appearance of missing values in the table.
Usage
sprinkle_na_string(
  x,
  rows = NULL,
  cols = NULL,
  na_string = getOption("pixie_na_string", NA),
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## Default S3 method:
sprinkle_na_string(
  x,
  rows = NULL,
  cols = NULL,
  na_string = getOption("pixie_na_string", NA),
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## S3 method for class 'dust_list'
sprinkle_na_string(
  x,
  rows = NULL,
  cols = NULL,
  na_string = getOption("pixie_na_string", NA),
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
Arguments
| x | An object of class  | 
| rows | Either a numeric vector of rows in the tabular object to be 
modified or an object of class  | 
| cols | Either a numeric vector of columns in the tabular object to be modified, or a character vector of column names. A mixture of character and numeric indices is permissible. | 
| na_string | 
 | 
| part | A character string denoting which part of the table to modify. | 
| fixed | 
 | 
| recycle | A  | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Functional Requirements
- Correctly reassigns the appropriate elements - na_stringcolumn in the table part.
- Casts an error if - xis not a- dustobject.
- Casts an error if - bgis not a- character(1)
- Casts an error if - partis not one of- "body",- "head",- "foot", or- "interfoot"
- Casts an error if - fixedis not a- logical(1)
- Casts an error if - recycleis not one of- "none",- "rows", or- "cols"
- Cast an error if - recycle = "none"and- na_stringdoes not have length 1.
The functional behavior of the fixed and recycle arguments 
is not tested for this function. It is tested and validated in the
tests for index_to_sprinkle.
See Also
Sprinkle the Padding of a Cell
Description
Padding for HTML tables indicates how many pixels should be placed between the cell's content and the outside border.
Usage
sprinkle_pad(
  x,
  rows = NULL,
  cols = NULL,
  pad = 0,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## Default S3 method:
sprinkle_pad(
  x,
  rows = NULL,
  cols = NULL,
  pad = 0,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## S3 method for class 'dust_list'
sprinkle_pad(
  x,
  rows = NULL,
  cols = NULL,
  pad = 0,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
Arguments
| x | An object of class  | 
| rows | Either a numeric vector of rows in the tabular object to be 
modified or an object of class  | 
| cols | Either a numeric vector of columns in the tabular object to be modified, or a character vector of column names. A mixture of character and numeric indices is permissible. | 
| pad | 
 | 
| part | A character string denoting which part of the table to modify. | 
| fixed | 
 | 
| recycle | A  | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
Colors may be a dvips color name, or in the rgb(R, G, B), rgba(R, G, B, A), #RRGGBB, or #RRGGBBAA formats.
This sprinkle is ignored in console and markdown outputs. HTML output will accept any of the color formats and recognize transparency. LaTeX output will accept any of the color formats but ignore transparency.
As long as pad is required to be a numeric(1), the 
recycle argument is kind of useless. It is included to maintain
consistency with the index_to_sprinkle function. Future development
may permit a character vector of colors.
Functional Requirements
- Correctly reassigns the appropriate elements - padcolumn in the table part.
- Casts an error if - xis not a- dustobject.
- Casts an error if - padis not a- numeric(1)
- Casts an error if - partis not one of- "body",- "head",- "foot", or- "interfoot"
- Casts an error if - fixedis not a- logical(1)
- Casts an error if - recycleis not one of- "none",- "rows", or- "cols"
- Cast an error if - recycle = "none"and- paddoes not have length 1.
The functional behavior of the fixed and recycle arguments 
is not tested for this function. It is tested and validated in the
tests for index_to_sprinkle.
Author(s)
Benjamin Nutter
See Also
Replace Contents of Selected Cells
Description
At times it may be necessary to replace the contents of a cell with user-supplied values.
Usage
sprinkle_replace(
  x,
  rows = NULL,
  cols = NULL,
  replace,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## Default S3 method:
sprinkle_replace(
  x,
  rows = NULL,
  cols = NULL,
  replace,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## S3 method for class 'dust_list'
sprinkle_replace(
  x,
  rows = NULL,
  cols = NULL,
  replace,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
Arguments
| x | An object of class  | 
| rows | Either a numeric vector of rows in the tabular object to be 
modified or an object of class  | 
| cols | Either a numeric vector of columns in the tabular object to be modified, or a character vector of column names. A mixture of character and numeric indices is permissible. | 
| replace | 
 | 
| part | A character string denoting which part of the table to modify. | 
| fixed | 
 | 
| recycle | A  | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Functional Requirements
- Correctly reassigns the appropriate elements - replacecolumn in the table part.
- Casts an error if - xis not a- dustobject.
- Casts an error if - replaceis not a vector
- Casts an warning if the number of indices to replace is not a multiple of - replace
- Casts an error if - length(replace)is greater than the number of cells to replace.
- Casts an error if - partis not one of- "body",- "head",- "foot", or- "interfoot"
- Casts an error if - fixedis not a- logical(1)
- Casts an error if - recycleis not one of- "none",- "rows", or- "cols"
The functional behavior of the fixed and recycle arguments 
is not tested for this function. It is tested and validated in the
tests for index_to_sprinkle.
See Also
Sprinkle Appearance of NA's
Description
The content of cells may be rotated when it is desired to save space (such as long table column names), or to draw attention to the cells.
Usage
sprinkle_rotate_degree(
  x,
  rows = NULL,
  cols = NULL,
  rotate_degree = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## Default S3 method:
sprinkle_rotate_degree(
  x,
  rows = NULL,
  cols = NULL,
  rotate_degree = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## S3 method for class 'dust_list'
sprinkle_rotate_degree(
  x,
  rows = NULL,
  cols = NULL,
  rotate_degree = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
Arguments
| x | An object of class  | 
| rows | Either a numeric vector of rows in the tabular object to be 
modified or an object of class  | 
| cols | Either a numeric vector of columns in the tabular object to be modified, or a character vector of column names. A mixture of character and numeric indices is permissible. | 
| rotate_degree | 
 | 
| part | A character string denoting which part of the table to modify. | 
| fixed | 
 | 
| recycle | A  | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Functional Requirements
- Correctly reassigns the appropriate elements - rotate_degreecolumn in the table part.
- Casts an error if - xis not a- dustobject.
- Casts an error if - rotate_degreeis not a- numeric(1)
- Casts an error if - partis not one of- "body",- "head",- "foot", or- "interfoot"
- Casts an error if - fixedis not a- logical(1)
- Casts an error if - recycleis not one of- "none",- "rows", or- "cols"
- Cast an error if - recycle = "none"and- rotate_degreedoes not have length 1.
The functional behavior of the fixed and recycle arguments 
is not tested for this function. It is tested and validated in the
tests for index_to_sprinkle.
See Also
Sprinkle Appearance of NA's
Description
The appearance of NA values in a table may be dependent
on the context.  pixiedust uses the round sprinkle
to guide the appearance of missing values in the table.
Usage
sprinkle_round(
  x,
  rows = NULL,
  cols = NULL,
  round = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## Default S3 method:
sprinkle_round(
  x,
  rows = NULL,
  cols = NULL,
  round = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## S3 method for class 'dust_list'
sprinkle_round(
  x,
  rows = NULL,
  cols = NULL,
  round = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
Arguments
| x | An object of class  | 
| rows | Either a numeric vector of rows in the tabular object to be 
modified or an object of class  | 
| cols | Either a numeric vector of columns in the tabular object to be modified, or a character vector of column names. A mixture of character and numeric indices is permissible. | 
| round | 
 | 
| part | A character string denoting which part of the table to modify. | 
| fixed | 
 | 
| recycle | A  | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Functional Requirements
- Correctly reassigns the appropriate elements - roundcolumn in the table part.
- Casts an error if - xis not a- dustobject.
- Casts an error if - roundis not a- numeric(1)
- Casts an error if - partis not one of- "body",- "head",- "foot", or- "interfoot"
- Casts an error if - fixedis not a- logical(1)
- Casts an error if - recycleis not one of- "none",- "rows", or- "cols"
- Cast an error if - recycle = "none"and- rounddoes not have length 1.
The functional behavior of the fixed and recycle arguments 
is not tested for this function. It is tested and validated in the
tests for index_to_sprinkle.
See Also
Sanitize Characters for LaTeX Outputs
Description
Certain characters in LaTeX code need to be escaped to 
prevent errors during processing.  For example, % is the 
comment character in LaTeX, and needs to be escaped in 
order to render correctly.
Usage
sprinkle_sanitize(
  x,
  rows = NULL,
  cols = NULL,
  sanitize = NULL,
  sanitize_args = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## Default S3 method:
sprinkle_sanitize(
  x,
  rows = NULL,
  cols = NULL,
  sanitize = NULL,
  sanitize_args = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## S3 method for class 'dust_list'
sprinkle_sanitize(
  x,
  rows = NULL,
  cols = NULL,
  sanitize = NULL,
  sanitize_args = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
Arguments
| x | An object of class  | 
| rows | Either a numeric vector of rows in the tabular object to be 
modified or an object of class  | 
| cols | Either a numeric vector of columns in the tabular object to be modified, or a character vector of column names. A mixture of character and numeric indices is permissible. | 
| sanitize | 
 | 
| sanitize_args | A list of arguments to pass to 
 | 
| part | A character string denoting which part of the table to modify. | 
| fixed | 
 | 
| recycle | A  | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
This sprinkle is only recognized by LaTeX output.  See 
latexTranslate for more details.
Functional Requirements
- Correctly reassigns the appropriate elements of - sanitizeand- sanitize_argscolumns in the table part.
- Casts an error if - xis not a- dustobject.
- Casts an error if - sanitizeis not a- logical(1)
- Casts an error if - sanitize_argsis not a- list
- Casts an error if - partis not one of- "body",- "head",- "foot", or- "interfoot"
- Casts an error if - fixedis not a- logical(1)
- Casts an error if - recycleis not one of- "none",- "rows", or- "cols"
The functional behavior of the fixed and recycle arguments 
is not tested for this function. It is tested and validated in the
tests for index_to_sprinkle.
See Also
Change the tabcolsep Property in a Dust Table
Description
The tabcolsep property controls the space between 
columns in LaTeX output.  By default, it is set to 6 pt.
Usage
sprinkle_tabcolsep(x, tabcolsep = getOption("pixie_tabcolsep", 6), ...)
## Default S3 method:
sprinkle_tabcolsep(x, tabcolsep = getOption("pixie_tabcolsep", 6), ...)
## S3 method for class 'dust_list'
sprinkle_tabcolsep(x, tabcolsep = getOption("pixie_tabcolsep", 6), ...)
Arguments
| x | An object of class  | 
| tabcolsep | 
 | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
Reading on the details of tabcolsep may be done by 
searching "latex tabcolsep" on the internet.
This property has no effect on non-LaTeX output.
Functional Requirements
- Change the - tabcolsepattribute of the- dustobject.
- Cast an error if - xis not a- dustobject.
- Cast an error if - tabcolsepis not integerish and length 1.
Author(s)
Benjamin Nutter
Source
See Also
Adjust Table Cell Width
Description
Customize the width of a cell in a table. This may be done to improve the appearance of cells with long text.
Usage
sprinkle_width(
  x,
  rows = NULL,
  cols = NULL,
  width = NULL,
  width_units = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## Default S3 method:
sprinkle_width(
  x,
  rows = NULL,
  cols = NULL,
  width = NULL,
  width_units = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
## S3 method for class 'dust_list'
sprinkle_width(
  x,
  rows = NULL,
  cols = NULL,
  width = NULL,
  width_units = NULL,
  part = c("body", "head", "foot", "interfoot", "table"),
  fixed = FALSE,
  recycle = c("none", "rows", "cols", "columns"),
  ...
)
Arguments
| x | An object of class  | 
| rows | Either a numeric vector of rows in the tabular object to be 
modified or an object of class  | 
| cols | Either a numeric vector of columns in the tabular object to be modified, or a character vector of column names. A mixture of character and numeric indices is permissible. | 
| width | 
 | 
| width_units | 
 | 
| part | A character string denoting which part of the table to modify. | 
| fixed | 
 | 
| recycle | A  | 
| ... | Additional arguments to pass to other methods. Currently ignored. | 
Details
This sprinkle is only recognized by HTML and LaTeX.  All of the 
width_units values are recognized by HTML.  For LaTeX, "px"
is converted to "pt".
Functional Requirements
- Correctly reassigns the appropriate elements of - widthand- width_unitscolumns in the table part.
- Casts an error if - xis not a- dustobject.
- Casts an error if - widthis not- numeric
- Casts an error if - width_unitsis not one of- c("px", "pt", "in", "cm", "%").
- Casts an error if - partis not one of- "body",- "head",- "foot", or- "interfoot"
- Casts an error if - fixedis not a- logical(1)
- Casts an error if - recycleis not one of- "none",- "rows", or- "cols"
- Casts an error if - recycle = "none"and- widthdoes not have length 1.
- Correctly assigns values when - recycleis not- "none"and multiple values are given.
- Quietly accepts only the first value in - width_unitswhen- recycle = "none".
The functional behavior of the fixed and recycle arguments 
is not tested for this function. It is tested and validated in the
tests for index_to_sprinkle.
See Also
Extract Patterns from Character Strings
Description
This is a utility function that follow the pattern of
stringr::str_extract_all.  It is provided to avoid the 
dependency on the stringr package.
Usage
str_extract_base(x, pattern)
str_split_fixed_base(x, pattern, n)
Arguments
| x | 
 | 
| pattern | 
 | 
| n | The number of splits. | 
Source
https://stackoverflow.com/a/27274231/1017276
See Also
stringr::str_extract_all
Term and Level Descriptions for pixiedust Tables
Description
Default model objects identify rows of results with 
appropriate term name.  More often than not, the term name is 
not suitable for formally reported output.  tidy_levels_labels
performs some basic work to quickly provide more readable 
descriptors for cases where they can easily be obtained.  These
descriptors are retrieved from the data, however, so the 
utility is determined by the user's habits in providing 
term labels and meaningful factor levels.  
Due to the complexity of the terms that could be used for a model,
it isn't practical to attempt to recover human-ready descriptors
for every conceivable term.  This would require recovering variable
names for any number of functions.  pixiedust only 
goes after the easiest to obtain. Replacements no managed by 
tidy_levels_labels may still be made with the replace
sprinkle.
Usage
tidy_levels_labels(
  object,
  descriptors = "term",
  numeric_level = c("term", "term_plain", "label"),
  argcheck = NULL
)
Arguments
| object | A model object, ideally with a  | 
| descriptors | A character vector indicating the descriptors to
be used in the table.  Acceptable inputs are  | 
| numeric_level | A character string that determines which descriptor
is used for numeric variables in the  | 
| argcheck | An assert collection created by  | 
Details
The user may select up to five columns of descriptors, although doing so would certainly create some ambiguity. See the Examples for sample output.
- "term"The term name used in the R model summary
- "term_plain"The term name used in the formula. For variables that produce multiple term names (such as factors), the plain term name may be duplicated. For example, a factor that has term names- FctrBand- FctrC, indicating rows for levels- Band- Cof the variable- Fctr, will have two rows of- "term_plain"of just- Fctr.
- "label"Provides the label attached to the data using- labelVector::get_label. When a term is not associated with a label, the value of- term_plainis returned instead. Note that, variable names will disassociate with a label if they are used in a function (such as- factor(x)or- x^2.
- "level"Indicates the level being compared within a factor (or an interaction involving a factor), otherwise it returns- NA. It may also be said that this value is the appendix to a factor name. For the term- FctrB, this would just be- B.
- "level_detail"Gives additional information to- levelby including the reference level of the factor. For the term- FctrB, this would return- "B vs A". When an interaction with a numeric variable is present, the- levelfor the numeric may be either- term_plainor- label, the choice being controlled by the- level_detailargument.
Restrictions
The descriptors, other than "term", generally don't make sense for data 
frame objects.  The use of tidy_levels_labels is not permitted within
the dust function, but is allowed if you really want it by 
pixiedust:::tidy_levels_labels.
Other special cases noted in future uses will be documented here, but in general, if it isn't a model object, you probably don't really want to use this.
Author(s)
Benjamin Nutter
Examples
#* Descriptors for lm output with no interactions
mtcars2 <- mtcars
mtcars2$mpg <- labelVector::set_label(mtcars2$mpg, "Gas Mileage")
mtcars2$qsec <-  labelVector::set_label(mtcars2$qsec, "Quarter Mile Time")
mtcars2$am <-  labelVector::set_label(mtcars2$am, "Transmission")
mtcars2$wt <-  labelVector::set_label(mtcars2$wt, "Weight")
mtcars2$gear <-  labelVector::set_label(mtcars2$gear, "Gears")
#* Basic Output for a model with no interactions
#* Note: numeric_level has no impact as there are no
#*       interactions involving numeric variables.
fit <- lm(mpg ~ qsec + factor(am) + wt + factor(gear), data = mtcars2)
pixiedust:::tidy_levels_labels(fit, 
  descriptors = c("term", "term_plain", "label", "level", "level_detail"),
  numeric_level = "term") 
  
#* Assign factors ahead of the model. This allows 
#* the user to determine the levels that display.
#* Compare the output for 'am' with the output for 'gear'
mtcars2$am <- factor(mtcars2$am, 0:1, c("Automatic", "Manual"))
mtcars2$am <-  labelVector::set_label(mtcars2$am, "Transmission") 
    # Label was lost in variable conversion
fit <- lm(mpg ~ qsec + am + wt + factor(gear), data = mtcars2)
pixiedust:::tidy_levels_labels(fit, 
  descriptors = c("term", "term_plain", "label", "level", "level_detail"),
  numeric_level = "term") 
  
  
#* Include an interaction between a factor and numeric.
fit <- lm(mpg ~ qsec + am * wt + factor(gear), data = mtcars2)
pixiedust:::tidy_levels_labels(fit, 
  descriptors = c("term", "term_plain", "label", "level", "level_detail"),
  numeric_level = "term") 
  
#* Now observe how 'level' and 'level_detail' change 
#* in the interaction terms as we choose different 
#* values for 'numeric_level'
pixiedust:::tidy_levels_labels(fit, 
  descriptors = c("term", "term_plain", "label", "level", "level_detail"),
  numeric_level = "term_plain")
  
pixiedust:::tidy_levels_labels(fit, 
  descriptors = c("term", "term_plain", "label", "level", "level_detail"),
  numeric_level = "label")