Blog Archives

random 0.2.2

December 14, 2013
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A maintenance release of my random package for truly (hardware-based) random numbers (pulled from random.org) is now on CRAN. It's been a while since previous releases. The package is described in a detailed vignette as well as in a essay by Mads Haa...

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gcbd 0.2.5

December 14, 2013
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A maintenance release (now at version 0.2.5) of my gcbd package (described only in these two posts) is now CRAN. More details about the package are available in the paper which is also included in the gcbd R package. Changes were minimal and driv...

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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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