[R] autocorrelation in count data

[sahin at hsu-hh.de]

hello,

I try to model traffic accidents with the following model:

glm.nb(y~j+w+m+sf+b+ft,data=fr[]). the problem is that there exist  
autocorrelation  in the data. one possibility is to model traffic  
accidents with inar(1)-models. has anyone an idea how to change this  
model in order to abtain an integer valued time series model?

thanks
nazli