daewr (version 1.0-1)

DefScreen: Definitive Screening Designs

Description

Recalls Jones and Nachtsheim's Definitive screening designs for 3-level factors and 3-level factors with added 2-level categorical factors.

Usage

DefScreen(m, c=0, randomize=FALSE)

Arguments

m

input- an integer, the m=number of 3-level factors

c

input- an integer, the m=number of 2-level categorical factors, default is zero if not supplied

randomize

input - logical

Value

• a data frame containing the definitive screening design with 3-level factors first followed by 2-level factors.

References

Jones, B. and Nachtsheim, C. J. (2011) "A Class of Three Level Designs for Definitive Screening in the Presence of Second-Order Effects", Journal of Quality Technology, Vol 43, No. 1, 2011, pp 1-15. Jones, B. and Nachtsheim, C. J. (2013) "Definitive Screening Designs with Added Two-Level Categorical Factors", Journal of Quality Technology, Vol 44, No. 2, 2013, pp. 121-129.

Examples

DefScreen(m=8,c=2)
DefScreen(12)
DefScreen(m=4,c=4, randomize=TRUE)