Blog Archives

Where should you publish that next paper?

February 11, 2011
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Where should you publish that next paper?

Like many academics, Arthur Charpentier thinks a lot about publishing papers in journals. Specifically, we wondered if there was a way to figure out which journal was the best place to publish his next paper and have it accepted: I was wondering if there were clusters of journals, i.e. journals that publish almost the same kind of articles (so...

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R overtakes SAS and Matlab in programming language popularity

February 10, 2011
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Tiobe Software ranks the popularity of programming languages based on references in search engines. While the methodology might be debated in terms of the absolute rankings it produces, it is quite interesting to see how the rankings fluctuate over time: Tiobe has produced a monthly report of rankings based on this methodology since 2001. In the Tiobe Programming Community...

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New R User Groups in Europe

February 9, 2011
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It's great to see the growth in R user groups around the world, and now there are three new ones in western Europe: In Amsterdam, a new R user group has just formed, called amst-R-dam. They are just scheduling their first meeting now (vote here for a date) which will be in the next 3-4 weeks; In Geneva, the...

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Abstracts for R/Finance 2011 due February 15

February 8, 2011
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If you're planning to go to R/Finance 2011 in Chicago (and if you're doing quantitative finance with R, you definitely should), time is running out to submit your abstract for contributed talks. The best part of R/Finance is learning about all the interesting ways R is used to analyze financial data, so why not share your experiences as you...

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Revolution in the News

February 8, 2011
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Between the recent launch of Revolution R Enterprise 4.2 and the announcement of the SAS to R Challenge, there's been a flurry of recent news about Revolution Analytics and R in the media. Here's a quick recap: The Register's Timothy Prickett Morgan comments on the SAS to R Challenge: 'Red Hat for stats' goes toe-to-toe with SAS. "By supporting...

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R courses from Statistics.com

February 7, 2011
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If you're looking for some in-depth training in R, here are some upcoming courses presented by R gurus and hosted by statistics.com to consider: Feb 11: Modeling in R (Sudha Purohit -- more details after the jump) Mar 4: Introduction to R - Data Handling (Paul Murrell) Apr 15: Programming in R (Hadley Wickham) Apr 29: Graphics in R...

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The R-Files: Dirk Eddelbuettel

February 4, 2011
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The R-Files: Dirk Eddelbuettel

"The R-Files" is an occasional series from Revolution Analytics, where we profile prominent members of the R Community. Name: Dirk Eddelbuettel Background: Ph.D. (EHESS, France), Quantitative Analyst Nationality: Canadian Years Using R: About 15 Known for: RQuantlib, Rcpp/RInside, R packaging for Debian/Ubuntu, Task Views for Finance and HPC, CRANberries Dirk Eddelbuettel is an active member of the R community...

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Revolution R Enterprise 4.2 now available

February 1, 2011
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Today we're pleased to announce the availability of the latest update to the Revolution R family, Revolution R Enterprise 4.2. This release includes all of the capabilities of the most powerful statistical software available, open-source R (version 2.11.1), plus additional components for big data analysis, integration, user experience and more. Version 4.2 includes a number of new features, including:...

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Tricks to manage memory in an R session

January 31, 2011
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Unless you're using an out-of-memory solution to manage large data objects (such as the RevoScaleR package in Revolution R Enterprise), then R always allocates memory for every object in your working session. If you're working with many objects (or even just a few large objects) then you'll need to take care to manage R's memory usage to avoid the...

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Slides and replay for "Portfolio design, optimization and stability analysis"

January 27, 2011
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Slides and replay for "Portfolio design, optimization and stability analysis"

Thanks to everyone who attended yesterday's webinar, "Portfolio design, optimization and stability analysis", presented by Diethelm Würtz of the Rmetrics Association and sponsored by Revolution Analytics, Sybase, Finance Online and NeuralTechSoft. (And thanks in particular for your patience for the last start -- in a perfect demonstration of Murphy's law a microphone failed moments before the scheduled start.) If...

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