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zero inflated poisson/underdispersed data

Posted: Wed Aug 17, 2016 1:31 am
by dbutler13
Hi,

I am fitting a 2 level poisson model where my data are underdispersed (mean>variance).
Is there an option or way to account for this using runmlwin or within MLwin directly?

Thanks
Danielle

Re: zero inflated poisson/underdispersed data

Posted: Tue Aug 23, 2016 1:33 pm
by ChrisCharlton
You should be able to specify this by adding the extra option, in the same way as for extra-binomial variation (see the -runmlwin- help). I notice that this isn't mentioned as working for Poisson in the current documentation, so I will look into updating this for a later release.

Re: zero inflated poisson/underdispersed data

Posted: Mon Sep 12, 2016 4:29 am
by dbutler13
Thank you!
Danielle