One inflated modelling using glmmTMB

[Allison Queiroz de Oliveira]

Hi all,

Does anyone know if there is a way to modelling one-inflated data using glmmTMB or any other TMB function? I am aware about the zero inflation modelling using such functions, but the case I am working on is with one-inflation.

Thank you very much.

Best regards, 

Allison

[Ben Bolker]

Hi Allison,

Can you post this as an issue on the glmmTMB issues list
<https://github.com/glmmTMB/glmmTMB/issues> ? (This Cross-Validated
post suggests that VGAM::vglm() can handle one-inflated Poisson models ...)

https://stats.stackexchange.com/questions/90817/why-are-there-no-one-inflated-count-data-models

It *might* be possible to hack/hijack the ziformula machinery to
handle one-inflation (not with the package as it exists, but maybe
without adding too much additional code to the model ...)

cheers
Ben Bolker

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[Allison Queiroz de Oliveira]

Hi Ben!

Thank you very for your reply.

I have found a way using the gamlss package with the family BEOI() just in case someone wants to explore it a little more. 

Best regards, 

Allison

Allison Queiroz de Oliveira

Animal Scientist

Master in Statistics and Agricultural Experimentation

PhD candidate in Statistics and Agricultural Experimentation

Luiz de Queiroz College of Agriculture

University of São Paulo

To post to this group, send email to us...@tmb-project.org. Before posting, please check the wiki and issuetracker at https://github.com/kaskr/adcomp/. Please try to create a simple repeatable example to go with your question (e.g issues 154, 134, 51). Use the issuetracker to report bugs.

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