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Re: st: overdispersion


From   Richard Gibson <[email protected]>
To   [email protected]
Subject   Re: st: overdispersion
Date   Tue, 24 Jan 2006 10:14:52 +1100

Usha,
 
You might want to look at
 
 
and also at
 
 
if the overdispersion relates to excess zeros
 
Richard

>>> [email protected] 23/01/2006 7:20:43 pm >>>
Dear all,
Pl. tell me whether stata takes care of overdispersion while estimating poisson regression. My data set has this problem because standard deviation is greater than the mean value. Do I apply negative binomial to overcome this problem?
Thanks

usha

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