mxkssd {mxkssd}

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)