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[r] How to get AIC from Conway–Maxwell-Poisson regression via COM-poisson package in R?

Is there an easy way to get AIC for a Conway–Maxwell-Poisson regression from COM-poisson package in R?

see http://cran.r-project.org/web/packages/COMPoissonReg/COMPoissonReg.pdf

I am not able to find build in loglik function nor AIC

Shall I use AIC(glm of poisson fit) - chisq(cmp_fit) + 2?

This question is related to r

The answer is

I figured out myself.

cmp calls ComputeBetasAndNuHat which returns a list which has objective as minusloglik

So I can change the function cmp to get this value.

Source: Stackoverflow.com

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