Backend based on sampling via cmdstanr.
SBC_backend_cmdstan_sample(model, ..., init_factory = NULL)an object of class CmdStanModel (as created by cmdstanr::cmdstan_model)
other arguments passed to the $sample() method of the model. The data and
parallel_chains arguments cannot be set this way as they need to be controlled by the SBC
package.
an optional function that takes in a dataset and returns a value that
can be passed to the init argument of $sample(). This allows for data-dependent inits.
The caching mechanism in compute_SBC() ignores the environment of the function, i.e.
if the init factory takes values from its environment and those values change between
runs, this will not by itself cause cached results to be recomputed.