InformationWeek published today a profile of Zack Urlocker, the former MySQL executive who recently joined REvolution's board: Former MySQL staffer Zack Urlocker is going to try to do for predictive analytics what he once did for relational database systems: bring open source code to a user population that hasn't necessarily ... [Read more...]

In the US, at least. Via The Consumerist: Incidentally, the US FDA doesn't publish pyramids like this any more: it's now a garish personalized 2-d triangle with stripes. But at least it doesn't make the error of dimension committed by the left-hand pyramid: that orange section is a hell of ... [Read more...]

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On a lark, and to kill a bit of time, I was running the R fortune command looking for references to SAS. Here’s what two successive random fortunes turned up. Can there be two more antipodal opinions about the same product? I laughed out loud. __ fortune(‘SAS’) There are ... [Read more...]

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Hi there! This blog will be dedicated to data visualization in R. Why? Two reasons. First, when it comes to statistics, I am always starting by some exploratory analyses, mostly with plots. And when I handle large quantities of data, it’s nice to make some graphs to get a ... [Read more...]

GCS Model Grids Recently finished some collaborative work with Vishal, related to visualizing climate change data for the SEI. This project was funded in part by the California Energy Commission, with additional technical support from the Google Earth Team. One of the final products was an interactive, multi-scale Google Earth ... [Read more...]

As a coincidence, or not, I received the following email just before starting our mixture estimation workshop (the above is Ben Nevis on Monday, whose skyline really looks like a three component mixture!) and giving a discussion on label switching: I am implementing a Markov-Chain Monte Carlo method for Gibbs ... [Read more...]

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I totally missed this the other day, but there's much more to that special report on the data deluge in The Economist. (Thanks to readers SB and DN for pointing this out.) There's an total of nine articles in the report (you can find them all in the Related Items ... [Read more...]

When I first read Le Monde puzzle this weekend, I though it was even less exciting than the previous one: find and , such that is a multiple of . The solution is obtained by brute-force checking through an R program: and then the a next solution is (with several values for ... [Read more...]

I wrote an R function to do soft-trimming, right clipping FastQ reads based on quality.This function has the option of leaving out sequences trimmed to extinction and will do left-side fixed trimming as well.#softTrim#trim first position lower than minQuality and all subsequent positions#omit sequences that after ... [Read more...]

A while ago I wrote a co-wrote chapter for an introductory psychology text book Essential Psychology: A Concise Introduction. This is a book edited and written by members of the department where I work. My contribution was the chapter on huma... [Read more...]

Analyst David Stodder at Intelligent Enterprise also noted the activity around R at the recent Predictive Analytics World conference in San Francisco, and he reviews his impressions in a column today. In fact, he attributes the increasing prominence of predictive analytics to R: Possibly the most important factor influencing the ... [Read more...]

In a previous tutorial I showed you how to create plots faceted by the level of a third variable using ggplot2. A commenter asked about using faceted plots and viewports and reminded me of this function I found in the ggplot2 Google group. The arrange function below is similar to ... [Read more...]

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The Official Google Blog today includes an analysis of Google's search traffic related to the recently-concluded Winter Olympics, correlating various high-profile events with searches from particular countries. For example, traffic from the United States shows the expected diurnal cycle but with promintent peaks for the opening ceremony and the hockey ... [Read more...]

As you might have heard from this morning's press release, we've just welcomed a new member to REvolution's board of directors: Zack Urlocker. Zack has an impeccable open-source pedigree: until recently, he was responsible for engineering and marketing at MySQL, the wildly successful open-source database company recently acquired by Oracle (... [Read more...]

Following last year's successful unconference on data mining, the Bay Area Association for Computing Machinery (ACM) will again host the 2010 ACM Data Mining Camp on March 20 in San Jose, CA. The event is free and runs from 11:15am - 7:30pm, with an optional 2-hour pre-camp training in the morning. (REvolution ... [Read more...]