Hello,
Can Mlwin fit zeroinflated negative binomial models? I know that we can fit Poisson and negative binomial models.
thanks in advance
Adel
Zeroinflated negative binomial models?

 Posts: 1232
 Joined: Mon Oct 19, 2009 10:34 am
Re: Zeroinflated negative binomial models?
Unfortunately MLwiN cannot fit these models. Professor Kelvyn Jones suggests however that you may wish to read the article at https://statisticalhorizons.com/zeroinflatedmodels as it may be that you may not need to use a zero inflated model.
Re: Zeroinflated negative binomial models?
Thanks for the link, Chris. Interesting article. As the article states, we have theoretical reasons to test the statistical efficiency of a multilevel zeroinflated negative binomial model and a regular multilevel negative binomial model. I assume you or Kelvyn are not aware of any (R) package that can estimate these types of multilevel models?
By the way, does the online learning facility (LEMMA) has teaching material on negative binomial models? I cannot locate it. (Interested specifically in the R2mlwin learning experience of negative binomial models, but general learning material is fine too )
Thanks in advance
By the way, does the online learning facility (LEMMA) has teaching material on negative binomial models? I cannot locate it. (Interested specifically in the R2mlwin learning experience of negative binomial models, but general learning material is fine too )
Thanks in advance

 Posts: 1232
 Joined: Mon Oct 19, 2009 10:34 am
Re: Zeroinflated negative binomial models?
I am not familiar with any R packages that handle these models.
There are currently no LEMMA modules that cover these model types, however Kelvyn is in the process of writing a module on count data which should fill this gap.
There are currently no LEMMA modules that cover these model types, however Kelvyn is in the process of writing a module on count data which should fill this gap.
Re: Zeroinflated negative binomial models?
Ok, thanks, Chris.
Looking forward to reading Kelvyn's module.
Looking forward to reading Kelvyn's module.

 Posts: 45
 Joined: Tue Jan 10, 2017 3:36 am
Re: Zeroinflated negative binomial models?
This looks very helpful and thanks for the useful discussion everyone!