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) 532 (or 31 more since just the last release!) other packages on CRAN.
This release once again brings a number of improvements, see below for details.
Changes in RcppArmadillo version 0.9.200.4.0 (2018-11-09)
Upgraded to Armadillo release 9.200.4 (Carpe Noctem)
faster handling of symmetric positive definite matrices by
faster transpose of matrices with size ≥ 512×512
faster handling of compound sparse matrix expressions by
faster handling of sparse matrices by
sign()to handle scalar arguments
expanded operators (
−) to handle sparse matrices with differing element types (eg. multiplication of complex matrix by real matrix)
conv_to()to allow conversion between sparse matrices with differing element types
solve()to optionally allow keeping solutions of systems singular to working precision
clangbug in C++17 mode
Commented-out sparse matrix test consistently failing on the fedora-clang machine CRAN, and only there. No fix without access.
The ‘Unit test’ vignette is no longer included.
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.