Reading cmdstanr csv files

Interfaces CmdStan
1

Hi everyone,

Sorry if this is an obvious question but I wasn’t able to figure it out from the cmdstanr website.

I ran a big model for about a week but the machine got shut down before I could look at the samples. I ran two chains and all I have left is the .csv files that get saved when specifying the argument output_dir in sample(). Is there any way I can use those .csv files to inspect my posterior draws?

Thanks!

Matt

2

You can use the ”stansummary" utility from the cmdstan binaries directory.

3

If your .csv files contain the complete posterior estimates from a model, you can try:

cmdstanr::as_cmdstan_fit(path_to_files)