Fillv function

This function Creates interior points in an existing mixture design.

This function creates interior points in a mixture design by averaging all possible pairs of design points. It duplicates SAS macro adxfill.

Fillv(nfac,des)

Arguments

• nfac: an integer representing the number of mixture variables in the design
• des: a data frame containing a mixture design created by one of the functions SLD, SCD or Xvert

Author(s)

John S. Lawson lawson@byu.edu

Examples

# Example 1 fills interior of Simplex Lattice Design
des<-SLD(3,3)
DesignPoints(des)
des2<-Fillv(3,des)
DesignPoints(des2)

# Example 2 fills interior of Simplex Centroid Design
des<-SCD(4)
Fillv(4,des)

# Example 3 fills interior of Extreme vertices design
ev<-Xvert(3,uc=c(.1,.1,1.0),lc=c(0,0,0),ndm=1)
ev2<-Fillv(3,ev)