Shiny with Rstan

shiny
2

Hi,

I'm unfamiliar with Stan, but running your code (without Shiny) gives me the following errors/problems:

  • You want your graph to be dependent on an input slider I presume, but nowhere in your Stan code do you use the variable x or bins, so the model is not using any user-data at this point.
  • Creating the stan_model with your provided (easy) function takes a long time, is this normal? You can add the argument verbose = T to stan_model to see its intermediate steps
  • Finally, when I try and run the sampling method, I get an error:
> fit <- rstan::sampling(model)
Error in cpp_object_initializer(.self, .refClassDef, ...) : 
  could not find function "cpp_object_initializer"
failed to create the sampler; sampling not done

Try and create a piece of normal R code that works first, then we'll worry about the Shiny :slight_smile:
You can find help for creating an example here:

Good luck,
PJ