Monthly Archives: October 2009

R 2.10.0 is Out!

October 26, 2009
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R 2.10.0 is Out!

The new R 2.10.0 is out! Get it from here. If you like take a look at these posts for some miscellaneous advices to make the upgrade easier. Fell free to contribute with suggestions about how to upgrade your R installation.

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Free statistics e-books for download

October 25, 2009
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This post will eventually grow to hold a wide list of books on statistics (e-books, pdf books and so on) that are available for free download.  But for now we’ll start off with just one several books:The Elements of Statistical Learning written by Trevor Hastie, Robert Tibshirani and Jerome Friedman. you can legally download

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Example 7.16: assess robustness of permutation test to violations of exchangeability assumption

October 24, 2009
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Example 7.16: assess robustness of permutation test to violations of exchangeability assumption

Permutation tests (section 2.4.3) are a form of resampling based inference that can be used to compare two groups. A simple univariate two-group permutation test requires that the group labels for the observations are exchangeable under the null hypothesis of equal distributions, but allows relaxation of specific distributional assumptions required by parametric procedures such as the t-test (

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A primer to Sweave with LyX

October 24, 2009
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This is a step-by-step guide to 'Sweave' a document in R with Lyx on Ubuntu (9.04).System: Ubuntu 9.04, LyX 1.6.2, R 2.11.0 (Development version, r50178)Install LyX with Synaptic if it is not installed yet. (Current version 1.6.2)Start LyX, go to menu ...

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Data Mining and R

October 24, 2009
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Data Mining and R

This post lists a few data mining resources in R. I also provide a few observations on the distinction between data mining, data analysis, and statistics as it pertains to the analysis work that I do in psychology.Online ResourcesThe classic book The E...

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RSPerl : Using R from within Perl

October 23, 2009
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Some things I write in perl some in R, sometime I use perl to write R and run R. One thing that I find very useful is the functionality of RSPerl which enables you to call R functions from within perl and on perl variables. It can also call perl from R, though I have no idea why...

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RSPerl : Using R from within Perl

October 23, 2009
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Some things I write in perl some in R, sometime I use perl to write R and run R. One thing that I find very useful is the functionality of RSPerl which enables you to call R functions from within perl and on perl variables. It can also call perl from R, though I have no idea why...

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Scivews-K got updated

October 23, 2009
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Scivews-K got updated

http://www.sciviews.org/SciViews-K/index.htmlThe problem is, I cannot get it to work, on either Windows or Linux.

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From ORD Sessions to R-Forge in 12 hours with RProtoBuf

October 22, 2009
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Yesterday, via in invitation from fellow Chicago-area Google Summer of Code mentor Borja Sotomayor, I attended the Second ORD Sessions. These are happening at the HQ of Inventable where a couple of technologists and Open Source geeks from the Chicagoland area get together and riff on code for a few hours after work over some pizza and beer.Sounded good, and I...

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From ORD Sessions to R-Forge in 12 hours with RProtoBuf

October 22, 2009
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Yesterday, via in invitation from fellow Chicago-area Google Summer of Code mentor Borja Sotomayor, I attended the Second ORD Sessions. These are happening at the HQ of Inventable where a couple of technologists and Open Source geeks from the Chicagola...

Read more »