Thu, 01 Mar 2018

RcppArmadillo 0.8.400.0.0

RcppArmadillo release 0.8.400.0.0, originally prepared and uploaded on February 19, finally hit CRAN today (after having been available via the RcppCore drat repo for a number of days). A corresponding Debian release was prepared and uploaded as well. This RcppArmadillo release contains Armadillo release 8.400.0 with a number of nice changes (see below for details), and continues our normal bi-monthly CRAN release cycle (slight delayes in CRAN processing notwithstanding).

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) 450 other packages on CRAN.

A high-level summary of changes follows.

Changes in RcppArmadillo version 0.8.400.0.0 (2018-02-19)

• Upgraded to Armadillo release 8.400.rc2 (Entropy Bandit)

  • faster handling of sparse matrices by repmat()

  • faster loading of CSV files

  • expanded kron() to handle sparse matrices

  • expanded index_min() and index_max() to handle cubes

  • expanded randi(), randu(), randn(), randg() to output single scalars

  • added submatrix & subcube iterators

  • added normcdf()

  • added mvnrnd()

  • added chi2rnd()

  • added wishrnd() and iwishrnd()

• The configure generated header settings for LAPACK and OpenMP can be overridden by the user.

• This release was preceded by two release candidates which were tested extensively.

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.

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