如何通过R中的COM-poisson包从Conway–Maxwell-Poisson回归中获得AIC？

Question

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 ?

Answer 1

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.