qualityTools (version 1.31.1)

rsmDesign: Generate a response surface design (i.e. central composite design)

Description

Generates a response surface design containing a cube, centerCube, star and centerStar portion.

Usage

rsmDesign(k = 3, p = 0, alpha = "rotatable", blocks = 1, cc = 1, cs = 1, faceCentered = FALSE)

Arguments

k

number of factors

p

number of additional factors in the response surface design by aliasing effects

alpha

value of alpha "rotatable", "orthogonal" or "both". If "both" values for cc and cs will be discarded

blocks

number of blocks in the response surface design

cc

number of centerpoints (per block) in the cube portion of the response surface design

cs

number of centerpoints in the star portion of the response surface design

faceCentered

faceCentered response surface design or not (i.e. alpha = 1)

Value

• object of class facDesign

Details

Generated designs consist of a cube, centerCube, star and a centerStar portion.

See Also

facDesign fracDesign fracChoose rsmChoose

Examples

#central composite design for 2 factors with 2 blocks, alpha = 1.41, 5 centerpoints in the cube portion and 3 centerpoints in the star portion
rsmDesign(k = 2, blocks = 2, alpha = sqrt(2),cc = 5, cs = 3)

#central composite design with both, orthogonality and near rotatability 
rsmDesign(k = 2, blocks = 2, alpha = "both")