follow on to PR 992 - when running sampler algorithm fixed_param instead of hmc, record in Stan CSV header #1029
Description
Summary:
Wrapper CmdStanPy parses the Stan CSV outputs. If the sampler was called on a model with no parameters and the user failed to specify algorithm=fixed_param, CmdStan will run fixed_param automatically; however the Stan CSV file header won't record this. Add another header comment line to the sampler file to record this.
Description:
see discussion in CmdStanPy issue here: stan-dev/cmdstanpy#425 (comment)
Current Version:
v2.27.0