[R] extract variance components

[Dieter Menne]

huang min <minhuangr <at> gmail.com> writes:

> I would like to extract the variance components estimation in lme function
> like
> 
> a.fit<-lme(distance~age, data=aaa, random=~day/subject)
> 

Try

VarCor(a.fit)

Using lme for the type of problems you have is just fine; in many respects, lme4
currently is a welcome complement rather than a replacement of nlme/lme.

Dieter