S3 generic to let backends signal that they produced independent draws.

Most backends (e.g. those based on variatns of MCMC) don't produce independent draws and thus diagnostics like Rhat and ESS are important and draws may need thinning. Backends that already produce independent draws (e.g. ADVI/optimizing) can implement this method to return TRUE to signal this is the case. If this method returns TRUE, ESS and Rhat will always attain their best possible values and SBC_backend_default_thin_ranks() will return 1. The default implementation returns FALSE.

SBC_backend_iid_draws(backend)

# S3 method for default
SBC_backend_iid_draws(backend)

Arguments

backend

to check