Blog Archives

The impact of the drug war in Mexico

June 18, 2010
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The impact of the drug war in Mexico

For the last couple of years, Mexico has been in the midst of an escalating drug war, with violent crime on the upswing in many areas. But tracking the impact quantitatively is difficult: in Mexico, about 85% of crimes go unreported, and corruption leads to inaccurate reporting in some districts. Diego Valle has taken on the task of visualizing...

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The distribution of online data usage

June 16, 2010
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The distribution of online data usage

AT&T has recently announced it will no longer offer unlimited data plans for new iPhone users in the US, and now some carriers in the UK have followed suit. In each case, the providers claim that only a very small number of users actually use enough data to warrant an unlimited plan, and most users use relatively little and...

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Welcome guest blogger, Joseph Rickert

June 15, 2010
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I'm about to head out for a two-week holiday, so I'll be off the grid for a little while. But I have queued up some (hopefully!) interesting stories to auto-post while I'm away, so there'll still be plenty to read every weekday as usual here on the blog. Also joining us for the next couple of weeks is guest...

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New R User Group in Kassel, Germany

June 15, 2010
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There's yet another local R user group launching this week, this time in Kassell, in central Germany. Their first meeting is on June 24. If my rusty German is holding up, looks like there will be some good discussion on editors and GUIs, how to find packages and functions, and R community resources. There's been lots of activity in...

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In case you missed it: May Roundup

June 14, 2010
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In case you missed them, here are some articles from last month of particular interest to R users. We linked to 13 videos for learning R, from the basics ("What is R?") to more advanced topics. We noted the release of R 2.11.1. We announced that Revolution Analytics makes its software available free of charge to the academic community....

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New R User Groups in Sydney, South Asia

June 14, 2010
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For R users in the Southern Hemisphere on the other side of the Prime Meridian, there are two new entries in the Local R User Group Directory: Sydney and South Asia. The Sydney group wins the prize for the best group acronym ever: SURF. The Sydney Users of R Forum will have their welcome meeting on July 6 July...

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New R User Group in Atlanta

June 11, 2010
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There's a new R User Group in Atlanta, GA. Well, it's not exactly new -- they've already had their first meeting -- but due to a cock-up on my part I failed to announce it at the time. (Memo to self: don't forget to star emails in Gmail that you have to follow up on!) There's a Google Group...

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Performance benefits of linking R to multithreaded math libraries

June 11, 2010
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R wasn't originally designed as a multithreaded application -- multiprocessor systems were still rare when the R Project was first conceived in the mid-90's -- and so, by default, R will only use one processor of your dual-core laptop or quad-core desktop machine when doing calculations. For calculations that take a long time, like big simulations or modeling of...

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The Deepwater Horizon, in context

June 11, 2010
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The Deepwater Horizon, in context

The Earth is pretty big. Give or take, it's about 36,000 feet (11km) to the height of a 747 soaring above Everest, and (in pleasing symmetry) about the same distance down the bottom of the Mariana Trench. (Nonetheless, if you shrunk the Earth down to scale, it would still be smoother than a billiard ball.) So I was surprised...

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R on TV

June 10, 2010
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Had a fun day today in a TV studio for Fox Business News, where Revolution CEO Norman Nie was giving an interview to Liz Claman at Fox Business Network. As you might expect, the interview focused a lot more on the business side than on technical capabilities of Revolution R, but there was some good discussion of the impacts...

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