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Dear all, Given a LME model (following the notation of Pinheiro and Bates 2000) y_i = X_i*beta + Z_i*b_i + e_i, is it possible to extract the variance-covariance matrix for the estimated beta_i hat and b_i hat from the lme fitted object? The reason for needing this is because I want to have interval prediction on the predicted values (at level = 0:1). The "predict.lme" seems to

First, a big thanks to all of the developers and users that have worked to make R such useful software. It is only because I find the software so useful that I have the following opinions. A recent post to R-devel listed the 'Top 10 Features' for one person. I found it to be quite an interesting read. Over the past couple of years I have assembled my own lists. Retrospective. Some of