Hello

I am not able to use the MuMIn package (version 1.7.7) for multimodel inference with a GLM Negative Binomial model (It does  work when I use GLM Poisson). The GLM Negative Binomial gives the following error statement:

Error in get.models(NBModel, subset = delta < 4) :
  object has no 'calls' attribute

Here is the unsuccessful Negative Binomial code.
>
> BirdNegBin     <-glm(B~Covariate1 + Covariate2 + Covariate3 + Covariate4 + Covariate5 + Covariate6
>+ Covariate7, data = SquareSumLowland,family = negative.binomial(theta = 1))
>
> NegBinDredge <- dredge(BirdNegBin)
> confset.d4 <- get.models(BirdNegBin, subset = delta < 4)
> model.avg(confset.d4)
> confset.95p <- get.models(BirdNegBin, cumsum(weight) <= .95)
> avgmod.95p <- model.avg(confset.95p)

Any assistance would be appreciated.

-- 
This message (and any attachments) is for the recipient ...{{dropped:8}}

