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ustats 0.1.5

• The DESCRIPTION now cites the paper describing the implemented methods: Chen, Zhang, and Liu (2025) doi:10.48550/arXiv.2508.12627.
• setup_ustats(persist = TRUE) no longer offers to write to the project .Rprofile. It now only prints the RETICULATE_PYTHON line for the user to add manually, so the package never writes to the user’s file space (CRAN policy).

ustats 0.1.4

Python environment handling

• Python dependencies (u-stats, numpy, torch) are now declared with reticulate::py_require() in .onLoad(). With reticulate (>= 1.41) they are provisioned automatically in a cached environment on first use, so most users need no manual setup at all. reticulate (>= 1.41) is now required.
• setup_ustats() gains a gpu argument. By default (gpu = FALSE) the much smaller CPU-only PyTorch build is installed from the official PyTorch wheel index; gpu = TRUE installs the default PyPI build (CUDA-enabled on Linux).
• check_ustats_setup() now reports the detected PyTorch version and whether CUDA is available, and prints actionable installation hints when something is missing.
• Added a “Getting started” vignette with a complete installation guide (automatic setup, setup_ustats(), and bring-your-own-environment) and troubleshooting tips; the README installation section was rewritten accordingly.

Bug fixes

• setup_ustats() now invisibly returns TRUE/FALSE as documented (it previously returned NULL because the persistence step was unreachable dead code placed after the return value).
• Fixed a duplicated “Description:” prefix in the DESCRIPTION file.

Internal

• Python-dependent tests are now additionally guarded with skip_on_cran(), so the test suite never initializes Python (or triggers automatic dependency downloads) on CRAN machines.
• expr_list_to_einstein() is internal and no longer generates a help page.

ustats 0.1.3

• Fixed NEWS.md filename casing (News.md -> NEWS.md).

ustats 0.1.2

• Quoted software names (‘NumPy’, ‘PyTorch’, ‘CUDA’) in DESCRIPTION per CRAN policy.

ustats 0.1.1

• Minor improvements and CRAN compliance fixes.

• Fixed issues identified during CRAN pre-checks, including:

  • Proper handling of external dependencies
  • Removal of non-ASCII characters
  • Namespace and import adjustments
  • Compliance with CRAN policies on user system modifications

ustats 0.1.0

• Initial CRAN release.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.