RcppArmadillo 0.8.500.0
RcppArmadillo release 0.8.500.0, originally prepared and uploaded on April 21, has hit CRAN today (after having already been available via the RcppCore drat repo). A corresponding Debian release will be prepared as well. This RcppArmadillo release contains Armadillo release 8.500.0 with a number of rather nice changes (see below for details), and continues our normal bi-monthly CRAN release cycle.
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) 472 other packages on CRAN.
A high-level summary of changes follows.
Changes in RcppArmadillo version 0.8.500.0 (2018-04-21)
Upgraded to Armadillo release 8.500 (Caffeine Raider)
faster handling of sparse matrices by
kron()andrepmat()faster transpose of sparse matrices
faster element access in sparse matrices
faster row iterators for sparse matrices
faster handling of compound expressions by
trace()more efficient handling of aliasing in submatrix views
expanded
normalise()to handle sparse matricesexpanded
.transform()and.for_each()to handle sparse matricesadded
reverse()for reversing order of elementsadded
repelem()for replicating elementsadded
roots()for finding the roots of a polynomialFewer LAPACK compile-time guards are used, new unit tests for underlying features have been added (Keith O'Hara in #211 addressing #207).
The configure check for LAPACK features has been updated accordingly (Keith O'Hara in #214 addressing #213).
The compile-time check for
g++is now more robust to minimal shell versions (#217 addressing #216).Compiler tests to were added for macOS (Keith O'Hara in #219).
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.
