[R] Negbin Error Warnings

[Clara Brück]

Hi,

I ran a negative binomial regression (NBR) using the Zelig-package and the negbin model.
When I then try to use the simumlation approach using the setx () and sim() functions to calculate expected values 
and first difference for different levels of one of my independent variables, I get 50 errors warnings, telling me that the calculation rpois produced NAs. However, the data I use doesn't have any NAs.
Does this mean that the NBR-model is the wrong model for this data?

Thanks in advance.



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