MCMCglmm (version 2.36)

mult.memb: Design Matrices for Multiple Membership Models

Description

Forms design matrices for multiple membership models

Usage

mult.memb(formula)

Value

design matrix

Arguments

formula

formula

Author

Jarrod Hadfield

Details

Currently mult.memb can only usefully be used inside an idv variance function. The formula usually contains serveral factors that have the same factor levels.

Examples

fac1<-factor(sample(letters[1:3], 5, TRUE), levels=letters[1:3])
fac2<-factor(sample(letters[1:3], 5, TRUE), levels=letters[1:3])
cbind(fac1, fac2)
mult.memb(~fac1+fac2)