Blog Archives

RcppArmadillo 0.2.14 and 0.2.15

March 4, 2011
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A few days ago Conrad Sanderson released version 1.1.6 of his Armadillo templated C++ library for linear algebra. Accordingly, I made a new release 0.2.14 of RcppArmadillo, our Rcpp-based integration into R which included a few local fixes. However, ...

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Rcpp 0.9.2

February 24, 2011
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The 0.9.2 release of Rcpp is now on CRAN and Debian.This version contains a build fix for the older 10.5.* version of OS X and its g++ 4.2.1 compiler; we now skip one test that upset it. CRAN builds for OS X should resume. We also added simple ...

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RQuantLib 0.3.6

February 23, 2011
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A bug-fix release RQuantLib 0.3.6 is now on CRAN and in Debian. RQuantLib combines (some of) the quantitative analytics of QuantLib with the R statistical computing environment and language.There are only two changes to two files where an explic...

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RcppArmadillo 0.2.13

February 19, 2011
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Yesterday Conrad Sanderson released version 1.1.4 of his Armadillo templated C++ library for linear algebra, so hot on the heels our 0.2.12 release from a few days ago comes version 0.2.13 of RcppArmadillo, our Rcpp-based integration into R. This new...

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RcppArmadillo 0.2.12

February 16, 2011
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A new version 1.1.2 of Conrad Sanderson's Armadillo templated C++ library for linear algebra came out a couple of days ago. This has now been wrapped into a new version 0.2.12 of RcppArmadillo, our Rcpp-based integration into R.The short NEWS fil...

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Rcpp 0.9.1

February 15, 2011
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A new release 0.9.1 of Rcpp went to CRAN and Debian yesterday.This version contains mostly bug-fixes and rather few enhancements. The changes are mostly 'internal fixes' and not user-facing; they mostly address some issues in memory management w...

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CRANberries is now tweeting

January 23, 2011
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The CRANberries service (which reports on new and updated CRAN packages for the R language and environment) is now tweeting about new packages. Simply follow @CRANberriesFeed to receive theses messages.For the technically minded, adding this to the...

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RcppBDT 0.1.0

January 18, 2011
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The family of Rcpp packages just grew by one: the first 0.1.0 release of RcppBDT is now on CRAN.RcppBDT stands for Rcpp Boost Date_Time. It employs what we call Rcpp modules: a mechanism which provides easier ways to expose C++ functions and classe...

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Keeping simple things simple

January 17, 2011
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My friend Jeff deserves a sincere congratulation for finally unveiling his rebranded R consultancy Lemnica. One notable feature of the new website is a section called esoteric R which discusses less frequently-visited corners of the R world. It even b...

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Plotting overbought / oversold regions in R

January 16, 2011
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Plotting overbought / oversold regions in R

The good folks at Bespoke Investment Group frequently show charts of so-called overbought or oversold levels; see e.g. here for the most recent global markets snapshot.Classifying markets as overbought or oversold is a popular heuristic. It starts...

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