Blog Archives

Calling R from JasperReports Server

March 2, 2011
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Revolution Analytics today announced a partnership with Jaspersoft, the makers of the most widely-used business intelligence software in the world. With this partnership, Revolution R and Jaspersoft software work together to bring the power of analytics coded in R to business users working with Business Intelligence (BI) dashboards and reports. If you're a Jaspersoft or R developer and would...

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Mapping the Chicago mayoral election

March 1, 2011
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Mapping the Chicago mayoral election

Rahm Emanuel is now Mayor of Chicago, having successfully defended a court challenge to his candidacy and then 5 rivals in the February 22 election. The Chicago Tribune has put together an interactive map of the results (color-coded by the winner in each precinct), but for R hackers who would like to create similar maps of other elections, the...

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New open-source IDE for R in beta test

February 28, 2011
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Rstudio, a new open-source IDE for R, has just been announced and is now available for beta test on Windows, MacOS, and Ubuntu. It works with an existing installation of R (2.11.1 or above) on your desktop, and is also available as a server version for Linux, where the IDE runs in your browser. It looks like an interesting...

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R 2.12.2 is available

February 25, 2011
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R 2.12.2 is available

As previously announced, R 2.12.2 is available for download today. Browsing through the various mirrors (using the Download R tool on inside-R.org), it looks like the Windows version is already available on many mirrors; the Mac and Linux versions will follow soon (and of course, sources are available now). The complete list of changes is in the announcement on...

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Setting up a parallel computing cluster for R with OpenSSH and doSNOW

February 25, 2011
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Responding to yesterday's post which included an aside on using parallel processing for by-group computations in R, reader Christian Gunning mused about the possibility of using doSNOW on his network, with OpenSSH to manage the authentication: I sit on a fast campus network and have at least 10 remote cores available that I could farm out for big jobs....

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Packages for By-Group Processing in R

February 24, 2011
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Analyst and BI expert Steve Miller takes a look at the facilities in R for doing "by-group" processing of data. The task consisted of: ... read several text files, merge the results, reshape the intermediate data, calculate some new variables, take care of missing values, attend to meta data, execute a few predictive models and graph the results. Then...

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What’s the best platform for a high score on Canabalt?

February 23, 2011
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What’s the best platform for a high score on Canabalt?

The Web-based Flash game Canabalt, whose scores have been analyzed by R before, is now available as an iOS App. Because the app is configured to work on three different platforms: the iPad, iPhone and iPod Touch; and because players are invited to tweet their best scores at the end of the game, like this: the Twitter stream again...

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Course: Machine Learning with R

February 22, 2011
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Starting on March 5 at the Hacker Dojo in Mountain View (CA), Mike Bowles and Patricia Hoffmann will present a course on Machine Learning where R will be the "lingua franca" for looking at homework problems, discussing them and comparing different solution approaches. The class will begin at the level of elementary probability and statistics and from that background...

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Who did HBGary contact the most?

February 21, 2011
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Following on from Friday's post about the travails of internet security firm HBGary, R user Michael Bommarito has done an analysis of the leaked emails to find the top 20 most contacted email addresses and the top 20 most referenced internet domains. There are some interesting names on those lists, to be sure. Check them out at the link...

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New R User Groups in Canada, India

February 21, 2011
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Three new local R user groups have just been added to the directory: In Québec, the group Plein-R is affilliated with the department of Forestry, Geography and Geomatics at Laval University. Although the group's website is in French, group organizer Etienne Racine says, "Our group is bilingual. Our meetings are in a mix of French and English: we call...

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