Sun, 02 Oct 2022

RcppArmadillo on CRAN: Updates

armadillo image

Armadillo is a powerful and expressive C++ template library for linear algebra and scientific computing. It aims towards a good balance between speed and ease of use, has a syntax deliberately close to Matlab, and is useful for algorithm development directly in C++, or quick conversion of research code into production environments. RcppArmadillo integrates this library with the R environment and languageā€“and is widely used by (currently) 1023 packages other packages on CRAN, downloaded 26.4 million times (per the partial logs from the cloud mirrors of CRAN), and the CSDA paper (preprint / vignette) by Conrad and myself has been cited 497 times according to Google Scholar.

This release reflect as new upstream release 11.4.0 Conrad made recently. It turns out that it triggered warnings under g++-12 for about five packages in the fortify mode default for Debian builds. Conrad then kindly addressed this with a few fixes.

The full set of changes (since the last CRAN release follows.

Changes in RcppArmadillo version (2022-10-01

  • Upgraded to Armadillo release 11.4.0 (Ship of Theseus)

    • faster handling of compound expressions by sum()

    • extended pow() with various forms of element-wise power operations

    • added find_nan() to find indices of NaN elements

  • Also applied fixes to avoid g++-12 warnings affecting just a handful of CRAN packages.

Courtesy of my CRANberries, there is a diffstat report relative to previous release. More detailed information is on the RcppArmadillo page. Questions, comments etc should go to the rcpp-devel mailing list off the R-Forge page.

If you like this or other open-source work I do, you can sponsor me at GitHub.

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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