Jonah Gabry

create fitted model object with subset of variables

3

Following up on this [forum post](https://discourse.mc-stan.org/t/is-there-a-way-to-remove-variables-from-rstan-cmdstanr-objects/22505) from @ihrke, we should add a way to create fitted model objects using only a subset of the variables in the CSV files. My...

Mention turning off range checks in compile doc?

2

In the upcoming release we have the option of turning off range checks to improve performance. Should we explicitly mention this option in the compile method doc?

Progress bar

43

CmdStanPy has a nice progress bar that we can implement in R too. We are currently using `processx::run(..., echo=TRUE)` so that the R user sees the output directly from CmdStan,...

Use new R6 roxygen support

1

In https://github.com/stan-dev/cmdstanr/issues/78#issuecomment-553179118 @stevebronder linked to the announcement of support for R6 documentation in roxygen2. This is good news! We should update. https://www.tidyverse.org/blog/2019/11/roxygen2-7-0-0/#r6-documentation

loo_predictive_metric and loo_crps could accept psis objects to reduce computation

2

If the user already has a psis object then `loo_predictive_metric` and `loo_[s]crps` could use that object instead of rerunning psis internally (similar to what `E_loo` already does, except in this...

testing running the vignettes on GHA

1

Testing running the vignettes on GitHub Actions. Will definitely fail on Windows but maybe not on Mac and/or Ubuntu.

Upcoming Stan release removes old array syntax, new RStan needed

51

See https://discourse.mc-stan.org/t/cmdstan-stan-2-33-release-candidate/32531. This one actually removes the old array syntax, not just a deprecation warning. @bgoodri @andrjohns @hsbadr Is RStan with new array syntax ready to be submitted to CRAN?

Deprecate ggplot functions in future rstan?

53

@bgoodri @andrjohns @hsbadr Should we deprecate all the ggplot functions in rstan? Maybe in conjunction with the release of 2.26 or another future version? The ggplot functions in rstan were...

Reminder to fix version numbers in Makevars files

2

CRAN is adding a warning if package version numbers are not strings (e.g. 2.26 vs '2.26'). This needs to be fixed in rstanarm's Makevars files.

The release candidate for ggplot2 available via `remotes::install_github("tidyverse/ggplot2", ref = remotes::github_pull("5592"))` breaks some of the visual tests due to very tiny differences in the SVGs. Once ggplot2 is released (scheduled...