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eulerr

ANALYTICS
Velocity0.0

R package eulerr by jolars — release notes from GitHub.

github.com/jolars/eulerr ↗

The area-proportional Euler diagram package is finished software, and maintained like it.

euler-diagramsset-visualizationoptimizationcpp-backendmaintenance-moder-package
◆Current state
eulerr generates area-proportional Euler and Venn diagrams by numerically optimizing shape positions and sizes to match set relationships, with the fitting done in C++. The last feature release was 7.0.0 in December 2022, which made the optimization's loss function user-selectable. Everything since has been maintenance: documentation URL corrections, a strip-layout fix when grouping, an Armadillo deprecation, and an R CMD check warning about an unignored config file.
◆Where it's heading
This is a mature package whose problem is solved, and the release pattern reflects that — three of the last four releases changed nothing a user would see. What activity remains is tracking its dependencies rather than its own roadmap: keeping up with Armadillo's deprecations and R CMD check policy is the whole of recent work. The two September 2025 releases an hour apart are a fix and its follow-up, not a development cycle restarting.
◆Prediction
The pattern points to continued upkeep triggered by upstream C++ and CRAN check changes rather than new capability. If anything does move, the configurable loss function added in 7.0.0 is the surface with room left in it.

◆Recent moves

  1. 10mo ago

    Config file added to Rbuildignore to clear a check warning

    A one-line packaging fix released an hour after the previous version, clearing an R CMD check warning. Pure CRAN hygiene.

    View source ↗
  2. 10mo ago

    Deprecated Armadillo call replaced and doc links repaired

    Maintenance driven entirely by things outside the package — a deprecated arma::is_finite() call and stale documentation URLs. The kind of release a stable C++ package produces to stay installable.

    View source ↗
  3. 2y ago

    Strip order and layout corrected for grouped diagrams

    A contributed fix to how strips are ordered and laid out when diagrams are grouped. Cosmetic, affecting only the grouped plotting path.

    View source ↗
  4. 2y ago

    Internal documentation and a stale link corrected

    Documentation-only follow-up to 7.0.0, fixing descriptions of internal functions and a URL. No functional change.

    View source ↗
  5. 3y ago

    Layout optimization gains a selectable loss function

    The last release with real content, and it opens up the part of the package that had been fixed: loss and loss_aggregator let users choose what the layout optimizer minimizes, documented in its own vignette. Since Euler diagrams frequently cannot represent a set relationship exactly, choosing how to distribute the unavoidable error is a genuine analytical decision rather than a preference.

    View source ↗
  6. 4y ago

    Citation added and error messages improved

    Housekeeping ahead of the 7.0 line: a conference paper citation, clearer errors for bad input, and a C++ macro change for header strictness. No behaviour change.

    View source ↗