Dear List, I am trying to do model averaging for a negative binomial model using the package AICcmodavg. I need to use glm() since the package does not accept glm.nb() models. I can get glm() to work if I first run glm.nb and take theta from that model, but is there a simpler way to estimate theta for the glm model? The two models are:
mod.nb<-glm.nb(mantas~site,data=mydata) mod.glm<-glm(mantas~site,data=mydata, family=negative.binomial(mod.nb$theta)) How else can I get theta for the family=negative.binomial(theta=???) Thanks! Tim Tim Clark Department of Zoology University of Hawaii ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.