Since you did not provide an example, I'm not sure I understand your
question. I will nevertheless offer some suggestions:
1. If you have not already, please review Pinheiro and Bates (2000)
Mixed-Effects Models in S and S-Plus (Springer).
2. Also, please review
Dear R-Users
I used the nlme library to fit a linear mixed model (lme). The random effect
standard errors and correlation reported are based on a Log-Cholesky
parametrization. Can anyone tell me how to get the Covariance matrix of the
random effects, given the above mentioned parameters ba
