(This article was first published on

A new release of RcppArmadillo is now on CRAN. RcppArmadillo makes it easy to write highly efficient and highly readable C++ code for linear algebra (based
on Armadillo) in R extensions (using Rcpp for the interface).**dirk.eddelbuettel**, and kindly contributed to R-bloggers) This release upgrades the included Armadillo version to 0.9.52
(see here for Conrad's high-level changes).
We had to make two minor tweaks. In the `fastLm()` help page example we switched from `inv()` to `pinv()
The short NEWS file extract follows:`

0.2.4 2010-07-27 o Upgraded to Armadillo 0.9.52 'Monkey Wrench' o src/fastLm.cpp: Switch from inv() to pinv() as inv() now tests for singular matrices and warns and returns an empty matrix which stops the example fastLm() implementation on the manual page -- and while this is generally reasonably it makes sense here to continue which the Moore-Penrose pseudo-inverse allows us to do this

` More information is on the RcppArmadillo page.
Questions, comments etc should go to the rcpp-devel mailing list off the R-Forge page.`

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