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variance-covariance matrix of the estimations of the variance-covariance matrix of the random effects

Resche Rigon Matthieu 
Dear all,

I try to obtain the variance-covariance matrix of the estimations of 
the variance covariance matrix of the random effects. I know how 
obtain it using lme but I would like to obtain it with lmer(). Is it 
possible?

Moreover do you know which formula is applied by ranef() to extract 
the conditional modes and the conditional variance-covariance
  matrix of the random effects?

Thanks in advance

Matthieu

Thread (2 messages)

Resche Rigon Matthieu variance-covariance matrix of the estimations of the variance-covariance matrix of the random effects Jan 13 Douglas Bates variance-covariance matrix of the estimations of the variance-covariance matrix of the random effects Jan 14