August 2009

R 64 bit on Mac OSX with ESS

August 6, 2009 | Matti Pastell

So today I compiled 64 bit R 2.91 on Mac OS X   10.5.7 in order to get maximum speed for my analyses. The speed increase I got was 15-25 %, when I ran some tests with matrix calculation and intensive loops. Note that you can also download optimized binaries from  http://r.research.att.... [Read more...]

RSRuby in the IRB console

August 6, 2009 | nsaunders

R is terrific, of course, for all your statistical needs. But those data structures! “Everything is a list.” Leading to such wondrous ways to access variables as “p
[Read more...]

Code Snippet : List of CRAN packages

August 5, 2009 | romain francois

This is a really simple code snippet that shows how to get the list of CRAN packages and their titles from the html page html page (toulouse mirror in this example). ... Note that R has the available.packages function, but it does not give th... [Read more...]

R parser package on CRAN

August 4, 2009 | romain francois

pre{ border: 1px solid black; font-family: "Courier New" !important; font-size: xx-small !important; } The parser package has been released to CRAN, the package mainly defines a function parser that is similar to the usual R function parse, w... [Read more...]

Transfer files through Rserve

August 4, 2009 | romain francois

This post is motivated by this question on R-help. This is a simple java class that sends files through Rserve using the classes RFileInputStream and RFileOutputStream Then we create a simple file on the client machine: $ cat __ testfile.tx... [Read more...]

My mi presentation at the useR! 2009

August 4, 2009 | Yu-Sung Su

I have been to many conferences. Most of them are of Political Science. The common feature of these conferences is that the audience size is always small. If you get 10 audiences in your panel, your must be a big name.My presentation at the useR! 20... [Read more...]

Non-parametric methods for the study of the correlation: Spearman’s rank correlation coefficient and Kendall tau rank correlation coefficient

August 3, 2009 | Todos Logos

We saw in the previous post, how to study the correlation between variables that follow a Gaussian distribution with the Pearson product-moment correlation coefficient. If it is not possible to assume that the values follow gaussian distributions, we have two non-parametric methods: the Spearman's rho test and Kendall's tau test.... [Read more...]

Rcpp 0.6.6

August 3, 2009 | Thinking inside the box

Version 0.6.6 of Rcpp [ a set of C++ classes making it easier to glue C/C++ code to R ] went off to CRAN and Debian earlier as another small maintenance release. While the diffstat output that will appear in cranberries may look impressive, it ste... [Read more...]

R GUI page on the R wiki

August 3, 2009 | romain francois

I've started the process of moving the content of this page to the R wiki. The motivation is that the content will become dynamic and updated much more often, people can add their own project, we can have use cases of each gui, tutorials, feature c... [Read more...]

useR! 2009 conference, Rennes, France

August 2, 2009 | Yu-Sung Su

Since my last attendance of the useR conference in Vienna, Austria, I have always wanted to go back. However, the high registration fee was always the factor that chills me off.This year, I am taking advantage of my last year as the student (the regis... [Read more...]
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