If you walk through the code line by line, you can probably find what
you want, then make relatively simple changes to the code so these
things are exported. However, it may not be easy to use, because you
need to understand the parameterization. To obtain that, you may need
to
I use the lme function from the nlme library (or alternatively from the
Matrix library) to estimate a random effects model. Both functions return
the covariance matrix of the estimated parameters. I have the following
question:
Is it possible to retrieve the information matrix of such a model
