[R-sig-ME] Patterned Variance-Covariance matrices for the random effect
tahirajamil at yahoo.com
Tue Aug 4 21:22:05 CEST 2009
I am wondering How can I assign special patteren / form e.g. compound symmetry structure , block diagonal etc to variance-covariace matrices to mer calss.
As in nlme library we have pdMat classes to specify patterened variance-covariance matrices for the random effects.
Hope to have some help from group members.
Ph.D student Biometrics
Wageningen University Wageningen
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