| Version: | 1.2 | 
| Date: | 2022-02-21 | 
| Title: | Efficient Mixed-Level k-Circulant Supersaturated Designs | 
| Author: | B N Mandal <mandal.stat@gmail.com> | 
| Maintainer: | B N Mandal <mandal.stat@gmail.com> | 
| Depends: | R(≥ 2.13.0) | 
| Description: | Generates efficient balanced mixed-level k-circulant supersaturated designs by interchanging the elements of the generator vector. Attempts to generate a supersaturated design that has EfNOD efficiency more than user specified efficiency level (mef). Displays the progress of generation of an efficient mixed-level k-circulant design through a progress bar. The progress of 100 per cent means that one full round of interchange is completed. More than one full round (typically 4-5 rounds) of interchange may be required for larger designs. For more details, please see Mandal, B.N., Gupta V. K. and Parsad, R. (2011). Construction of Efficient Mixed-Level k-Circulant Supersaturated Designs, Journal of Statistical Theory and Practice, 5:4, 627-648, <doi:10.1080/15598608.2011.10483735>. | 
| License: | GPL-2 | GPL-3 [expanded from: GPL (≥ 2)] | 
| NeedsCompilation: | no | 
| Packaged: | 2022-02-23 09:08:21 UTC; b | 
| Repository: | CRAN | 
| Date/Publication: | 2022-02-23 12:50:15 UTC | 
Efficient mixed-level k-circulant supersaturated designs
Description
mxkssd is a package that generates efficient balanced mixed-level k-circulant supersaturated designs by interchanging the elements of the generator vector. The package tries to generate a supersaturated design that has EfNOD efficiency more than user specified efficiency level (mef). The package also displays the progress of generation of an efficient mixed-level k-circulant design through a progress bar. The progress of 100 per cent means that one full round of interchange is completed. More than one full round (typically 4-5 rounds) of interchange may be required for larger designs.
Usage
mxkssd(m,n,level_vec,k,mef)Arguments
| m | number of factors | 
| n | number of runs | 
| level_vec | level vector containing the levels of the factors such that (n-1) factors have each of these levels | 
| k | order of circulation | 
| mef | minimum efficiency required, should be between 0 to 1 | 
Value
A list containing following items
| m | number of factors | 
| n | number of runs | 
| level_vec | level vector containing the levels of the factors such that (n-1) factors have each of these levels | 
| k | order of circulation | 
| generator.vector | generator vector | 
| design | design | 
| EfNOD.efficiency | EfNOD efficiency | 
| max.fNOD | maximum fNOD | 
| time.taken | time taken to generate the design | 
| number.aliased.pairs | number of aliased pairs of columns | 
Author(s)
B N Mandal
References
B. N. Mandal, V. K. Gupta & Rajender Parsad (2011) Construction of Efficient Mixed-Level k-Circulant Supersaturated Designs, Journal of Statistical Theory and Practice, 5:4, 627-648, DOI: 10.1080/15598608.2011.10483735
Examples
##To generate an efficient mixed level 2-circulant supersaturated design 
#with 8 runs and 14 factors such that 7 factors have number of levels 2 and 
#another 7 factors have number of levels 4. So the level_vec is c(2,4). 
#The required minimum efficiency is 1.
mxkssd(14,8,c(2,4),2,1)