[R] Lmer, heteroscedasticity and permutation, need help please

[Dieter Menne]

Alan Juilland <Alan.Juilland <at> unil.ch> writes:

 
> 2/ I read somewhere that lme is more adequate when heteroscedasticity is 
> strong. Do I have to use lme instead of lmer ?

This is correct, because currently lme has the "weights" argument to handle this
(i.e. weights=varPower()), while lmer is under development an does not support
this argument YET.

Dieter Menne