Zero Inflated Beta Binomial for BRMS

[jlabordenavas]

Hi all,

Any chance the ZIP Beta-Binomial model can be added to the BRMS package?
There seems to be interest on this family
https://discourse.mc-stan.org/t/zero-inflated-beta-binomial-model-under-brms/13170

Thanks.

[jackobailey]

You can already do this using the zero-one inflated beta distribution and fixing one of the parameters #942

[jlabordenavas]

Thanks. I do not see a zero_one_inflated_beta listed in the manual (maybe it needs to be updated). Plus, I am asking about a zero_inflated_beta_binomial which is different to a zero_inflated_beta anyway (at least with respect to the parameterization).

[paul-buerkner]

This family is unlikely to be implemented by me but if someone else has time, then why not.

[paul-buerkner]

Implemented thanks to @hdrab127.

[jlabordenavas]

Many thanks! @hdrab127 and @paul-buerkner

[ssalimi]

@hdrab127
I worked on the Zero Inflated Beta Binomial in December to and with some modification added to my manuscript.
https://discourse.mc-stan.org/t/non-linear-distribution-with-some-zeros-in-data/24915/39?u=ssalimi
It is so cool to see it is now implemented in the "brms". Thanks for that.