apVar

["Ariel Alonso" <ariel.alonso@fulladsl.be>]

Hi S users:

 

I have the variance covariance matrix of the random effects in a lme model, let us call this matrix D. Now I want the variance covariance matrix of the  elements of D. It seems that apVar can be used to obtain this but it uses a special parameterization. How can I obtain the matrix I need using apVar?.

 

Kind Regards,

 

 

 

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PhD. Ariel Alonso Abad
Hasselt University
Building D
3590 Diepenbeek, Belgium.