[R] post-hoc comparisons following glmm

From: MichaŽl Coeurdassier <michael.coeurdassier_at_univ-fcomte.fr>
Date: Wed 08 Feb 2006 - 03:16:41 EST


Dear R community,

I performed a generalized linear mixed model using glmmPQL (MASS library) to analyse my data i.e : y is the response with a poisson distribution, t and Trait are the independent variables which are continuous and categorical (3 categories C, M and F) respectively, ind is the random variable.

mydata<-glmmPQL(y~t+Trait,random=~1|ind,family=poisson,data=tab) Do you think it is OK?

Trait is significant (p < 0.0001) and I would like to perform post-hoc comparisons to check where the difference among Trait categories but I did not find a solution in R help list or others.

Thank you in advance for your help

Michael



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