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Hi I am running an lmer which works fine with family=poisson mixed.model<-lmer(nobees~spray+dist+flwabund+flwdiv+round+(1|field),family="poisson",method="ML",na.action=na.omit) But it is overdispersed. I tried using family=quasipoisson but get no P values. This didnt worry me too much as i think my data is closer to negative binomial but i cant find any exampl...

...th unsupervised randomForest() in R and can explain to me why I'm observing this behaviour? In general, any hints about pitfalls regarding random forests in unsupervised mode would be very much appreciated. Many thanks in advance, Irilenia ----------------------------- Irilenia (Irene) Nobeli Randall Division of Cell and Molecular Biophysics New Hunt's House (room 3.14) King's College London, Guy's Campus London, SE1 1UL U.K. irilenia.nobeli at kcl.ac.uk +44(0)207-8486329