| Type: | Package |
| Title: | Simply Read ASCII Single and Multicard Polling Datasets |
| Version: | 0.9.3 |
| Description: | A convenient way to read fixed-width ASCII polling datasets from providers like the Roper Center https://ropercenter.cornell.edu. |
| License: | MIT + file LICENSE |
| Encoding: | UTF-8 |
| LazyData: | true |
| Imports: | readr (≥ 1.3.1) |
| Suggests: | knitr, rmarkdown, testthat, gdata |
| VignetteBuilder: | knitr |
| RoxygenNote: | 7.1.0 |
| NeedsCompilation: | no |
| Packaged: | 2020-04-14 23:52:17 UTC; petulla |
| Author: | Sam Petulla [aut, cre] |
| Maintainer: | Sam Petulla <sam.petulla@gmail.com> |
| Repository: | CRAN |
| Date/Publication: | 2020-04-15 05:50:06 UTC |
Reads Roper Center datasets
Description
Reads fixed-width ASCII roper files. Takes arguments in the format a Roper Center survey codebook provides
Usage
read_rpr(
col_positions = NaN,
widths = NaN,
col_names = NaN,
filepath = NaN,
card_read = NaN,
cards = NaN
)
Arguments
col_positions |
starting position(s) to read |
widths |
width of value(s) to read |
col_names |
names of columns to return |
filepath |
data obj or filepath to read |
card_read |
card to read (if blank, reads a single card dataset) |
cards |
number of cards in dataset (if null, assumes single card) |
Value
a dataframe with len(col_names) number of columns, assigned to the values of col_names
Examples
fwf_sample <- readroper_example('testMultiCard.txt')
cat(readr::read_lines(fwf_sample))
fwf_sample2 <- readroper_example('testSingleCard.txt')
cat(readr::read_lines(fwf_sample2))
# 1. Fixed width file, first card, multi-card
read_rpr(col_positions=c(1,2,4), widths=c(1,2,1),
col_names=c('V1','V2','V3'), filepath=fwf_sample, card_read=1, cards=2)
# 2 .Fixed width file, first card, single card
read_rpr(col_positions=c(1,2,4), widths=c(1,2,1),
col_names=c('V1','V2','V3'), filepath=fwf_sample2)
# 3. Fixed width file, second card, multi-card
read_rpr(col_positions=c(1,2,4), widths=c(1,2,1),
col_names=c('V1','V2','V3'), filepath=fwf_sample, card_read=2, cards=2)
Get path to readroper example
Description
readroper comes bundled with a number of sample files in its 'inst/extdata' directory. This function make them easy to access
Usage
readroper_example(path = NULL)
Arguments
path |
Name of file. If 'NULL', the example files will be listed. |
Examples
readroper_example()
readroper_example('testMultiCard.txt')
readroper_example('testSingleCard.txt')