Defines functions model.matrix.varComp

Documented in model.matrix.varComp

model.matrix.varComp <-
function(object, what=c('fixed','random', 'varcov', 'X', 'K', 'Z'), ...)
# S3 method for getting design matrix of object of class varComp. 
# what: 'fixed' or 'X': Fixed effect design matrix. 
#       'random' or 'Z': random effect design matrix. NOTE: This is an equivalent design matrix, not necessarily the one supplied to varComp. 
#       'K': Returns the kernal matrix. 

  what=switch(what, random='Z', fixed='X', varcov='K', what)
	if('X'%in%names(object)) object$X else stop("X matrix is not recored")
  }else if (what=='K' || what=='Z'){
	if(!('K'%in%names(object))) stop("K matrices are not recored")
	if(what=='Z') lapply(object$K, cholRoot) else object$K

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varComp documentation built on May 2, 2019, 5:15 p.m.