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Wikipedia says: "The Delaporte distribution is a discrete probability distribution that has received attention in actuarial science..It can be defined using the convolution of a negative binomial distribution with a...

Yes, it is easy to use inits to set a single value. However, it is not clear how to set specific values for specific parameters. There has already been discussion...

I have found a way to create some sets of fairly-informaive initial values that have the correct structure for brm:- 1) run the model using variational Bayes - e.g. myVBmodel=brm(mybrmsformula,...