To whom it may concern, I am trying to fit a model for a data among which the response value is within [0,1). I am thinking about fitting the zeros as a complete separate category from the non-zero data, i.e. a binomial (Bernoulli) model to "==0 vs >0" and a Beta model to the >0 responses. Also, my data contains both nested factors and crossed factors, which means I need to add nested random effects and crossed random effects to both logistic model part and beta model model. However, I didn't find any R packages can do exactly what I want (By far I found gamlss, glmmTMB, zoib but they either can only assume random zero or they can only fit repeated measures/clustered data but not nested and crossed design). Therefore, I am wondering if any one know if there is any available package or function can do this. Thank you very much for your help! Best regards Meng
fitting beta and zero mixture model containing both nested and crossed random effects
1 message · Meng Liu