We are pleased to announce that the judges of the Chambers Award have selected the winner of the 2009 competition: Yihui Xie, from the Renmin University of China. Yihui received this year's award for his submission "animation," an R package for using g... [Read more...]

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A few weeks ago I wrote up a short review of Bernhard Pfaff's nice (but somewhat dry) Analysis of Integrated and Cointegrated Time Series with R (2nd ed) on unit root and cointegration modeling with R. This is now online at the Journal of Statistical Software. [Read more...]

  CHNOSZ Chemical thermodynamics library and activity diagram software   read more [Read more...]

Our inaugural R / Finance conference, mentioned here twice is now over. We were fortunate to get seven outstanding invited keynote speakers, as well as eleven excellent presentations. This was preceded by four short tutorials (and I'll post slides from my Introduction to High-Performance Computing with R soon). With about 150 registered ... [Read more...]

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This article from the Boston Globe gives an excellent description of what running Boston last Monday was like, and why we keep coming back, almost regardless. The writer, for whom it was the fifth Boston and ninth total, expresses the range of emotions, expectations, frustrations, excitements, ups, downs, ... all of ... [Read more...]

The organizing committee of the useR! 2009 conference just informed me, that my submission for presenting my extension package influence.ME, has been accepted! Influence.ME is a new R package that I’m currently developing, with the indispensable ... [Read more...]

This should be standard in Textmate, I don't know why one has to go through so many steps to get it working:http://gragusa.wordpress.com/2007/11/11/textmate-emacs-like-indentation-for-r-files/ [Read more...]

Monday was the 113th Boston Marathon. Just like in 2007 (and having skipped last year as I ran London the week before), I went as part of a group of local running friends. We once again had a blast---Boston on Marathon weekend is a real spectacle. Lots of people, lots of ... [Read more...]

The plot.corr() function was updated, now it can1. Add colorkey and text labels more flexible.2. Reorder the variables using PCA or hierarchical clustering methods.3. Excellent in details.4. Other.What's more, I found a new method to display correlatio... [Read more...]

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I got asked the question the other day about how to get to the internals of a function. I realized that this was not something that I had covered yet on my tips blog. read more [Read more...]

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There is a massive amount of data available on the web. Some of it is in the form of precompiled, downloadable datasets which are easy to access. But the majority of online data exists as web content such as blogs, news stories and cooking recipes. ... [Read more...]

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Sorry it has been so long to write an R tip. I've been really busy with my research, which you would think would produce lots of tips, but apparently not. Anyway here is a little tip to look at. read more [Read more...]

I use R for just about everything, including exploratory data analysis and graphics. The only other package with which I have any familiarity is Mathematica. I've been generally satisfied with R graphics, although there are things that I alway... [Read more...]