Define a model specification — vrc_model

Create a small model specification object that can be used to fit either the built-in Stan model shipped with vrcmort or a user-supplied Stan model file. This keeps the R-side data preparation and posterior extraction tools working even when users modify Stan code.

The param_map component is a named list mapping key quantities to Stan variable names. The default mapping matches the generated quantities in the base model.

Usage

vrc_model_spec(
  model = "vr_reporting_model",
  stan_file = NULL,
  backend = c("rstan"),
  param_map = NULL
)

Arguments

model: Either the name of a built-in Stan model (see vrc_model_names()) or a path to a .stan file.
stan_file: Optional explicit path to a .stan file. If supplied, it overrides model.
backend: Backend to use. Currently only "rstan" is supported.
param_map: Named list mapping rho, lambda, mu, y_rep, and optionally log_lik to Stan variable names.

Value

An object of class vrc_model_spec.