A CmdStanDiagnose
object is the object returned by the
$diagnose()
method of a CmdStanModel
object.
CmdStanDiagnose
objects have the following associated
methods:
Method | Description |
$gradients() | Return gradients from diagnostic mode. |
$lp() | Return the total log probability density (target ). |
$init() | Return user-specified initial values. |
$metadata() | Return a list of metadata gathered from the CmdStan CSV files. |
$save_output_files() | Save output CSV files to a specified location. |
$save_data_file() | Save JSON data file to a specified location. |
The CmdStanR website (mc-stan.org/cmdstanr) for online documentation and tutorials.
The Stan and CmdStan documentation:
Stan documentation: mc-stan.org/users/documentation
CmdStan User’s Guide: mc-stan.org/docs/cmdstan-guide
Other fitted model objects:
CmdStanGQ
,
CmdStanMCMC
,
CmdStanMLE
,
CmdStanVB
# \dontrun{
test <- cmdstanr_example("logistic", method = "diagnose")
# retrieve the gradients
test$gradients()
#> param_idx value model finite_diff error
#> 1 0 -0.185026 11.68660 11.68660 -2.89634e-09
#> 2 1 -1.579220 12.33760 12.33760 2.86842e-08
#> 3 2 -0.391481 4.28029 4.28029 -2.55717e-08
#> 4 3 -0.580364 18.08200 18.08200 -1.15854e-08
# }