[R] Fitting mixed-effects models with lme with fixed error term variances

[Gregor Gorjanc]

Douglas Bates <bates <at> stat.wisc.edu> writes:
...> 
> Can you be more specific about which parameters you want to fix and
> which you want to vary in the optimization?

It would be nice to have the ability to fix all variances i.e. variances of
random effects.

Gregor