RcppArmadillo 0.9.400.3.0

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

armadillo image

The recent 0.9.400.2.0 release of RcppArmadillo required a bug fix release. Conrad follow up on Armadillo 9.400.2 with 9.400.3 – which we packaged (and tested extensively as usual). It is now on CRAN and will get to Debian shortly.

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) 597 other packages on CRAN.

A brief discussion of possibly issues under 0.9.400.2.0 is at this GitHub issue ticket. The list of changes in 0.9.400.3.0 is below:

Changes in RcppArmadillo version 0.9.400.3.0 (2019-05-09)

  • Upgraded to Armadillo release 9.400.3 (Surrogate Miscreant)

    • check for symmetric / hermitian matrices (used by decomposition functions) has been made more robust

    • linspace() and logspace() now honour requests for generation of vectors with zero elements

    • fix for vectorisation / flattening of complex sparse matrices

The previous changes in 0.9.400.2.0 were:

Changes in RcppArmadillo version 0.9.400.2.0 (2019-04-28)

  • Upgraded to Armadillo release 9.400.2 (Surrogate Miscreant)

    • faster cov() and cor()

    • added .as_col() and .as_row()

    • expanded .shed_rows() / .shed_cols() / .shed_slices() to remove rows/columns/slices specified in a vector

    • expanded vectorise() to handle sparse matrices

    • expanded element-wise versions of max() and min() to handle sparse matrices

    • optimised handling of sparse matrix expressions: sparse % (sparse +- scalar) and sparse / (sparse +- scalar)

    • expanded eig_sym(), chol(), expmat_sym(), logmat_sympd(), sqrtmat_sympd(), inv_sympd() to print a warning if the given matrix is not symmetric

    • more consistent detection of vector expressions

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.

To leave a comment for the author, please follow the link and comment on their blog: Thinking inside the box .

R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: Data science, Big Data, R jobs, visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web Scraping) statistics (regression, PCA, time series, trading) and more...



If you got this far, why not subscribe for updates from the site? Choose your flavor: e-mail, twitter, RSS, or facebook...

Comments are closed.

Search R-bloggers

Sponsors

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)