[R] anova table with lmer

[Julien Beguin]

Hi everyone,

I am wandering if someone was able to get an anova table using the function lmer
in lme4 package with an other distribution than gaussian (ex: poisson). In fact,
I am using a GLMM with a poisson distribution where I have 2 independant fixed
variables (coded as factors with respectively two and three levels) and I am
interested with simple and interaction effects (I also have a couple of random
variables). However, rather than to have an estimate of each combination (plus
intercept), I would like first to know the effects of my 3 sources of variation
(not the combination of each level). This works well with a gaussian
distribution (using anova()) but not with another one (ex: poisson). I have
seen exemple where it seems to work pretty well even with factor variables so I
guess there is a way to do it... If someone know how to do, I would greatly
appreciate your help.

Best regards,

Julien

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Julien Beguin
Etudiant au doctorat
Faculté de Foresterie et de Géomatique
Université Laval, local 2113
2405 rue de la Terrasse, G1V 0A6 Québec (Qc)
Tel: (418) 656-2131 poste 2620
http://www.cen.ulaval.ca/anticosti/jbeguin.html