A new RcppArmadillo release based on a new Armadillo upstream release arrived on CRAN and Debian today.

Armadillo is a powerful and expressive C++ template library for linear algebra aiming towards a good balance between speed and ease of use with a syntax deliberately close to a Matlab. RcppArmadillo integrates this library with the R environment and language–and is widely used by (currently) 583 other packages on CRAN.

The (upstream-only this time) changes are listed below:

Changes in RcppArmadillo version 0.9.300.2.0 (2019-03-21)

• Upgraded to Armadillo release 9.300.2 (Fomo Spiral)

  • Faster handling of compound complex matrix expressions by trace()

  • More efficient handling of element access for inplace modifications in sparse matrices

  • Added .is_sympd() to check whether a matrix is symmetric/hermitian positive definite

  • Added interp2() for 2D data interpolation

  • Added expm1() and log1p()

  • Expanded .is_sorted() with options “strictascend” and “strictdescend”

  • Expanded eig_gen() to optionally perform balancing prior to decomposition

Courtesy of 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.

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