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R CMD check results

Local R CMD check --as-cran --no-manual mlumr_0.1.0.tar.gz on macOS (aarch64-apple-darwin20, R 4.5) reports:

  • 0 errors
  • 2 warnings (both environmental; see "Environmental notes" below)
  • 1 note (expected: new submission + cmdstanr declared via Additional_repositories)

No tests fail and no examples error.

Test environments

  • local macOS (aarch64-apple-darwin20), R 4.5
  • planned before release: win-builder (devel and release), R-hub (Fedora, Windows Server, Ubuntu Linux)

Environmental notes (macOS-only warnings)

Two warnings surface only on the submitter's macOS / Apple clang toolchain and are not expected to appear on CRAN's build servers:

  • Stale Homebrew ld search path: ld: warning: search path '/opt/homebrew/Cellar/r/4.5.1/lib/R/lib' not found. The submitter previously had a Homebrew-installed R; the path is now stale. The build still completes successfully.
  • checkbashisms script not installed locally: the macOS toolchain does not ship the Debian checkbashisms helper, so R CMD check reports that "a complete check needs the 'checkbashisms' script." CRAN's Linux servers run this check normally.

Notes to CRAN reviewers

  • This is a new submission.
  • The package embeds six Stan models (binomial / normal / poisson, each with SPFA and relaxed variants). They are compiled at install time via the standard rstantools pipeline; expect several minutes of C++ compilation.
  • cmdstanr is listed in Suggests with Additional_repositories: https://stan-dev.r-universe.dev. This follows the same approach adopted by brms and other Stan-ecosystem packages: cmdstanr is an optional backend, and rstan is the default, CRAN-available engine. Examples, tests, and vignettes do not require cmdstanr; cmdstanr comparison code is skipped unless cmdstanr and CmdStan are available.
  • Developer-only directories and build artifacts are excluded via .Rbuildignore; the current source tarball weighs about 380 KB.
  • The installed package is approximately 6.9 MB, dominated by the six Stan-generated shared libraries (5.4 MB in libs/). This is in line with other Stan-backed CRAN packages (e.g. rstanarm, brms) and is the unavoidable consequence of shipping pre-compiled Stan models.