A new Armadillo release 5.400.2 was just released by Conrad. Consequently, a new RcppArmadillo release 0.5.400.2.0 went out to CRAN and into Debian.

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.

This release contains the following extensions:

Changes in RcppArmadillo version 0.5.400.2.0 (2015-08-17)

• Upgraded to Armadillo 5.400.2 (“Plutocracy Incorporated Deluxe”)

  • added find_unique() for finding indices of unique values

  • added diff() for calculating differences between consecutive elements

  • added cumprod() for calculating cumulative product

  • added null() for finding the orthonormal basis of null space

  • expanded interp1() to handle repeated locations

  • expanded unique() to handle complex numbers

  • faster flupud()

  • faster row-wise cumsum()

  • fix for k-means clustering in gmm_diag class

• corrected use of kitten() thanks to Grant Brown

Courtesy of CRANberries, there is also a diffstat report for the most recent CRAN 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.