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jmniehaus / bizicount

An R package for bivariate, zero-inflated (or non-inflated) count models using copulas.
GNU General Public License v3.0
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Do you have an option for the bivariate zero-infalted negative binomial "mixed model" ? #9

Open khs9461 opened 1 year ago

khs9461 commented 1 year ago

Recently, I am trying to use the bizicount for my count data. I really appreciate this magnificent pacakage. Do you have an option for the bivariate zero-inflated negative binomial "mixed model" ? I have repeatedly measured count data in the same sites and want to use the mixed model option to estimate random effects. Do you have this option or do you have a plan for this? Thank you in advance.

jmniehaus commented 1 year ago

Hi! Thank you for reaching out, and apologies for the delay, I think I missed this due to the holidays.

The package does not currently support mixed models. I also do not know how mixed models would work theoretically in a copula setting. I will need to do more research to see if its possible. If you have any papers that come to mind on the topic, feel free to share them.

khs9461 commented 1 year ago

Thanks for the comment. I am using the bizicount very well for my forest ecology study. I am planning to publish it soon.

khs9461 commented 1 year ago

Maybe this article can help you: https://link.springer.com/article/10.1007/s11749-022-00814-1

khs9461 commented 1 year ago

and this too: https://linkinghub.elsevier.com/retrieve/pii/S0167668721001475

jmniehaus commented 1 year ago

Okay, thanks! I'll take a look. I'll say that given constraints on my time, it may be several months before I have anything up for this. If you'd like to write it yourself and make a PR, you're of course welcome to. Otherwise, I'll get to this once my schedule frees up a bit here in the coming months.

khs9461 commented 1 year ago

Okay, thanks!