Hi there!
I was trying to run a model comparison to compare between Poisson and Negative Binomial Prediction Formula obtained via the General Regression Model. However the results do not quite gel up. For example, RSquare for Negative Binomial shows 0.5743663 on the right side of the screenshot, while the left side of the screenshot which compares the RSquare together with Poisson, shows #### for Negative Binomial. Can someone help to advise why this is happening?