RcppArmadillo 0.3.920.1

September 30, 2013
By

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

Along with the
Rcpp 0.10.5 release yesterday,
a new minor release 0.3.920.1 of
RcppArmadillo
came out. It is based on Conrad’s
Armadillo 3.920.0 plus a minor
fix, and uses some of the new
Rcpp features.
Both package is now on CRAN
and also in Debian.

This releases contains both a nice set of new Armadillo features as well as
some nice additions to RcppArmadillo,
due again mostly to Romain. Some of the changes tie into the changes
changes in Rcpp 0.10.5
as for example the ability to pass const and const
ref
more efficiently (and we seem to have forgotten an entry in the
NEWS file).

The complete list of changes is below.

Changes in RcppArmadillo version 0.3.920.1 (2013-09-27)

  • Upgraded to Armadillo release Version 3.920.1 (Agencia Nacional Stasi)

    • faster .zeros()

    • faster round(), exp2() and log2() when using C++11

    • added signum function: sign()

    • added move constructors when using C++11

    • added 2D fast Fourier transform: fft2()

    • added .tube() for easier extraction of vectors and subcubes from cubes

    • added specification of a fill type during construction of Mat, Col, Row and Cube classes, eg. mat X(4, 5, fill::zeros)

  • Initial implementation of wrap<subview>

  • Improved implementation of as<>() and wrap() for sparse matrices

  • Converted main vignette from LaTeX style minted to lstlisting which permits builds on CRAN; removed set BuildVignettes: FALSE.

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

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

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