Dear R mixed model users,

I have been using package glmmADMB to run a full model and then reduced
model versions with the following distribution families: poisson,
zero-inflated poisson, poisson w/observation level random effect, negative
binomial, zero-inflated negative binomial, negative binomial type 1, and
zero-inflated negative binomial type 1. The models using poisson
w/observation level random effect give the best fit according to AIC values
but I am wondering if this is a fair comparison since it has an additional
random variable (observation)?

Thanks,

Shawn


-- 


Shawn F. McCracken
Ph.D. Candidate - Aquatic Resources
Department of Biology
Texas State University
601 University Drive
San Marcos, Texas 78666

smccracken@txstate.edu
http://uweb.txstate.edu/~sm1216/

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