[R-sig-ME] using cbind command for predictors in lmer models

Claudio De Sassi claudio.desassi at pg.canterbury.ac.nz
Sun Jun 26 06:10:29 CEST 2011

Dear all,

I'm new to R and not very stats proficient, so I apologize in advance!

I'd like to use PCA scores of a composition matrix as predictor in a lmer model, but I'm not sure this use is legitimate: here's what I've done:


model1<-lmer(abundance~factor1+factor2+Y+(1|random), family=poisson,REML=FALSE)

in terms of running the model, it all goes smooth and the result also make "biological sense", but I'm a bit out of my depth, and I wonder if this is a statistically correct/acceptable procedure?

many thanks

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