8
votes
When to use negative binomial and Poisson regression
Poisson regression can only be used when there is equidispersion, meaning the mean and variance are equal for the conditional distribution of the response. As soon as you enter into territories like ...
- 16.2k
7
votes
When to use negative binomial and Poisson regression
I'm going to give contradictory advice to Shawn (+1) to encourage some discussion on this matter. Ultimately, I recommend almost never using negative binomial models over Poisson.
Poisson regression ...
- 35.7k
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