Setting prior for Dirichlet Model

[samfleischer]

Found the answer… it is at the following link:

Setting priors for categorical model with "dpar": priors do not correspond to any parameter

Please also provide the following information in addition to your question: Operating System: Ubuntu 19.04 brms Version: 2.9.0 (Github) I am trying to set priors for a categorical model following the guidance in this post. My model is: mod0 <- brm(Reason ~ Gender + Degree + Age.Months.Start.c + Months.Experience.Start.c + (1|Clinician), data = Data , family = categorical(link = “logit”), prior = priors) get_priors returns useful information: prior class coe…