Search found 2 matches

by ktw08
Wed Mar 09, 2011 2:35 pm
Forum: MLwiN user forum
Topic: Estimating Overdispersion Parameter in Neg. Binomial Model
Replies: 0
Views: 13227

Estimating Overdispersion Parameter in Neg. Binomial Model

Hello all. I am running a two-level model using count data which shows evidence of overdispersion. I have settled on a Negative Binomial Model in which I would like to also get an estimate for the overdispersion parameter. While all the other estimates appear and are estimated, I can see the overdis...
by ktw08
Tue Sep 14, 2010 12:56 am
Forum: MLwiN user forum
Topic: Negative Binomial Random Coeffcient Mode
Replies: 0
Views: 3749

Negative Binomial Random Coeffcient Mode

Hi All, I am trying to estimate a Random Coefficient Model in a Negative Binomial framework and the variance structure looks to be a little wonky. I have a few questions and am hoping for a little guidance to run this model. 1. After switching to Neg. Binomial Regression, designating Y and offset. S...