[R] no predict function in lme4 ?

Douglas Bates bates at stat.wisc.edu
Tue Mar 23 20:48:21 CET 2010

It is not easy to decide what "predict" should return for a linear
mixed model, let alone the more complicated cases.  Do you want
predictions based on the fixed-effects only or based on a combination
of the fixed-effects and the random-effects?  For the lme function in
the nlme package we allowed "levels" of predictions but that won't
work for all models that can be fit with lme4.

On Tue, Mar 23, 2010 at 9:18 AM, Markus Loecher
<markus.loecher at gmail.com> wrote:
> Dear mixed effects modelers,
> I seem unable to find a predict method for mer objects in the package lme4.
> Am I not seeing the forest for the trees ?
> Any pointer would be very helpful.
> Thanks,
> Markus
>        [[alternative HTML version deleted]]
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