R: Check if an reStruct Object is Initialized

Check if an reStruct Object is Initialized

isInitialized(object)

object an object inheriting from class reStruct, representing a random effects structure and consisting of a list of pdMat objects.

Checks if all pdMat components of object have been initialized.

a logical value indicating whether all components of object have been initialized.

Jose Pinheiro and Douglas Bates

library(lme)
rs1 <- reStruct(~age|Subject)
isInitialized(rs1)