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I am trying to compare a set of models with poisson, zero-inflated poisson, negative binomial and zero-inflated negative binomial with the AICcmodavg::aictab function. The models with poisson ang negative binomial distribution goes well, but when I included either of the zero-inflated models I get the error message: "Functions do not support mixture of model classes". The are all the same class, glmmTMB.

If a compare only the different variants of each zero-inflated option by itself, I get a table output with AICc's, but NA's for the three remaining columns (Delta_AICc, AICcWt & Cum.Wt) I could just use anova, but I would like to use AICc and also get the delta AICc's as well.

Are there other functions that can compare these glmmTMB models with and without zero-inflation, or should the aictab function be able to do this indicating my script is wrong somewhere?

kirchoffs
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