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RE: st: RE: negative binomial

From   "Adrian Esterman" <>
To   <>
Subject   RE: st: RE: negative binomial
Date   Fri, 7 Feb 2003 09:43:35 +1030

I have missed out on the beginning of the thread. But if you have 13
predictor variables, I thought that the rule of thumb was to have a minimum
of 20 observations per parameter for log-linear models. Your low sample size
might be causing instability.

With regards

Dr Adrian Esterman
Senior Research Fellow
Department of General Practice
Flinders University
(08) 8204 4617

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