`optimizing`

method from `rstan`

.`R/backends.R`

`SBC_backend_rstan_optimizing.Rd`

SBC backend using the `optimizing`

method from `rstan`

.

`SBC_backend_rstan_optimizing(model, ..., n_retries_hessian = 1)`

- model
a

`stanmodel`

object (created via`rstan::stan_model`

)- ...
other arguments passed to

`optimizing`

(number of iterations, ...). Argument`data`

cannot be set this way as they need to be controlled by the package.- n_retries_hessian
the number of times the backend is allow to retry optimization (with different seeed) to produce a usable Hessian that can produce draws. In some cases, the Hessian may be numerically unstable and not be positive definite.