Blog Archives

RcppArmadillo 0.3.930.1

December 10, 2013
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A new Armadillo release 3.930 came out a few days ago, with a very nice set of changes (see below). I rolled this into RcppArmadillo 0.3.930.0. However, one of these changes revealed that R shipped only the standard SVD for complex-valued matrices, and not the more performant divide-and-conquer approach. So in R builds using the default built-in Lapack, at least one

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R and Big Data at Big Data Summit at UI Research Park

December 7, 2013
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I spent yesterday at the very enjoyable Big Data Summit held at the University of Illinois Research Park at the edge of the University of Illinois at Urbana-Champaign. campus. My (short) presentation was part of a panel session on R and Big Data...

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digest 0.6.4

December 3, 2013
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digest version 0.6.4 is now on CRAN and in Debian. This is a pure maintenance release which should help with a build issue affecting users on Solaris. CRANberries provides the usual summary of changes to version 0.6.3. Our package is available...

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Recent Rcpp talks at U Chicago / Booth and U Kansas

December 1, 2013
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In early October, I had an opportunity to talk about Rcpp and RcppArmadillo at the Statistical Computing Seminar at the Booth School of Business at the University of Chicago. And then two weeks ago, I had an invitation to talk at the Center for Re...

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RcppCNPy 0.2.2

November 30, 2013
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Right on the heels of release 0.2.1 of RcppCNPy, a new version 0.2.2 is now on CRAN. RcppCNPy uses the CNPY library by Carl Rogers to provide R with easy read and write access to NumPy files. The reason for the new version that I had experimented ...

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RcppCNPy 0.2.1

November 28, 2013
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Version 0.2.1 of RcppCNPy is now on CRAN earlier. This version is a minor upgrade with a few small changes as detailed in the NEWS file: Changes in version 0.2.1 (2013-11-28) Synchronized code with the cnpy repository Added new function to ...

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Website and blog updated

November 24, 2013
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Earlier this year the blog had its tenth anniversary. I had meant to celebrate the occassion by revamping the site and blog a little. Having set up the updated R/Finance site, the Rcpp Gallery and Rcpp sites as well as the much-needed overhaul of th...

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RcppArmadillo 0.3.920.3

November 20, 2013
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Conrad released a bug fix version 3.920.3 for his Armadillo library. So I prepared a new release 0.3.920.3 of RcppArmadillo which is nor on on CRAN and also already in Debian. Note that we skipped interim version .2 which addressed an Atlas linking i...

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Rcpp 0.10.6

October 29, 2013
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A new maintenance release 0.10.6 of Rcpp is now on the CRAN network for GNU R; binaries for Debian have been uploaded as well. This version ties up a number of smaller loose ends, but also adds a few new things, particularly John's new exposeClass....

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Introducing the CRAN Repository Policy Watch

October 23, 2013
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CRAN is the repository network for R. It is a resounding success with (as of right now) almost 5000 packages, and growth rate which has been estimated (cf John Fox's keynote at useR! a few years ago) to be near 40% per year. We as R community membe...

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