Sat, 05 Nov 2022

RcppEigen on CRAN: Maintenance

A new release of RcppEigen arrived on CRAN moments ago (and just went to Debian). Eigen is a C++ template library for linear algebra: matrices, vectors, numerical solvers, and related algorithms.

This update is again mostly maintenance. To accomodate one small aspect of the Fortran interface, we now require R 3.6.0 or later. Jonah Gabry spotted a really old typo and fixed it. The fastLm support code now uses the unabbreviated df.residual. We accomodated clang-15 in one signature as is common with many recent uploads, and also updated one aspect of GitHub Actions.

And once again as we said for the last four releases:

One additional and recent change was the accomodation of a recent CRAN Policy change to not allow gcc or clang to mess with diagnostic messages. A word of caution: this may make your compilation of packages using RcppEigen very noisy so consider adding -Wno-ignored-attributes to the compiler flags added in your ~/.R/Makevars.

We still find this requirement rather annoying. Eigen is only usable if you set, say,

-Wno-deprecated-declarations -Wno-parentheses -Wno-ignored-attributes -Wno-unused-function

asoptions in~/.R/Makevars`. But CRAN makes the rules. Maybe if a few of us gently and politely nudge them they may relent one day. One can only hope.

The complete NEWS file entry follows.

Changes in RcppEigen version (2022-11-04)

  • The dependency on R is now versioned to 3.6.0 or later for support for USE_FC_LEN_T from Fortran.

  • An old example typo was corrected (Jonah Gabry in #114).

  • The fastLm methods now reference df.residual by its full name (Closes #115).

  • A function prototype was updated for clang-15.

  • GitHub Actions were updated to checkout version 3.

Courtesy of CRANberries, there is also a diffstat report for the most recent release.

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This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

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