A CmdStanDiagnose object is the object returned by the $diagnose() method of a CmdStanModel object.

Methods

CmdStanDiagnose objects have the following associated methods:

MethodDescription
$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.

See also

The CmdStanR website (mc-stan.org/cmdstanr) for online documentation and tutorials.

The Stan and CmdStan documentation:

Other fitted model objects: CmdStanGQ, CmdStanLaplace, CmdStanMCMC, CmdStanMLE, CmdStanPathfinder, CmdStanVB

Examples

# \dontrun{
test <- cmdstanr_example("logistic", method = "diagnose")

# retrieve the gradients
test$gradients()
#>   param_idx     value      model finite_diff        error
#> 1         0 -0.656568  21.488200   21.488200 -3.43539e-08
#> 2         1  0.536526 -22.101600  -22.101600 -6.85812e-10
#> 3         2  1.603540 -33.634400  -33.634400  1.93245e-08
#> 4         3  0.609685   0.311848    0.311848 -1.15926e-08
# }