Transform a set of unconstrained parameter values to the constrained scale — fit-method-constrain_variables • cmdstanr

The $constrain_variables() method transforms input parameters to the constrained scale.

constrain_variables(
  unconstrained_variables,
  transformed_parameters = TRUE,
  generated_quantities = TRUE
)

Arguments

unconstrained_variables: (numeric) A vector of unconstrained parameters to constrain.
transformed_parameters: (logical) Whether to return transformed parameters implied by newly-constrained parameters (defaults to TRUE).
generated_quantities: (logical) Whether to return generated quantities implied by newly-constrained parameters (defaults to TRUE).

See also

log_prob(), grad_log_prob(), constrain_variables(), unconstrain_variables(), unconstrain_draws(), variable_skeleton(), hessian()

Examples

if (FALSE) { # \dontrun{
fit_mcmc <- cmdstanr_example("logistic", method = "sample", force_recompile = TRUE)
fit_mcmc$init_model_methods()
fit_mcmc$constrain_variables(unconstrained_variables = c(0.5, 1.2, 1.1, 2.2))
} # }