March 1, 2014

(This article was first published on Thinking inside the box , and kindly contributed to R-bloggers)

A new minor upstream release 4.100 of the Armadillo templated C++ library for linear algebra was finalised by Conrad yesterday. I rolled up the corresponding RcppArmadillo release which is now on CRAN and will go to Debian shortly.

Changes in RcppArmadillo version (2014-02-28)

  • Upgraded to Armadillo release Version 4.100.0 (Dirt Cruiser)

    • added normalise() for normalising vectors to unit p-norm

    • extended the field class to handle 3D layout

    • extended eigs_sym() and eigs_gen() to obtain eigenvalues of various forms (eg. largest or smallest magnitude)

    • automatic SIMD vectorisation of elementary expressions (eg. matrix addition) when using Clang 3.4+ with -O3 optimisation

    • faster handling of sparse submatrix views

    • workaround for a bug in LAPACK 3.4

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

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