Armadillo is a wonderfully expressive (thanks to clever modern template programming), powerful yet simple-to-use C++ library for linear algebra, making expressions in C++ as easy as writing in Matlab or R. By deploying our seamless Rcpp glue between R and C++, RcppArmadillo brings this nice C++ library to R users. The CRAN page for RcppArmadillo now lists ten packages using the RcppArmadillo package.
There was also an earlier bug-fix release 0.2.29 which I had not blogged about separately. The NEWS entries summarising the changes for both are below:
0.2.30 2011-11-19
o Upgraded to Armadillo test release 2.3.91 "Loco Lounge Lizard (Beta 1)"
* added shorter forms of transposes: .t() and .st()
* added optional use of 64 bit indices, allowing matrices to have
more than 4 billion elements
* added experimental support for C++11 initialiser lists
* faster pinv()
* faster inplace transpose
* bugfixes for handling expressions with aliasing and submatrices
* refactored code to eliminate warnings when using the Clang C++
compiler
* .print_trans() and .raw_print_trans() are deprecated
0.2.29 2011-09-01
o Upgraded to Armadillo release 2.2.3
* Release fixes a speed issue in the as_scalar() function.
Courtesy of
CRANberries, there
are also diffstat reports
for 0.2.30 relative to 0.2.29
and
for 0.2.29 relative to 0.2.28.
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.