Blog Archives

Seamless R Extensions using Rcpp and RInside

April 7, 2010
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I just added a new video to the R repository, and this one comes from the Los Angeles R Meetup. The folks in LA were fortunate enough to have Dirk Eddelbuettel—renowned R expert and StackOverflow super-user—discuss his joint work with Romain François for interfacing C++ and R code using the Rcpp package. For those

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How to Produce Fake Data Analysis in R: 3 Easy Steps

April 2, 2010
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How to Produce Fake Data Analysis in R: 3 Easy Steps

Did you really think that a team of researchers spent their weekends counting the number of shirtless adolescent men and exposed penises they could find on charoulette.com? Perhaps you should not answer that, as it may be a better measure of your opinion of sociologist than gullibility. It is true, sociologist do say the

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How Misinformed are Tea Party Protesters About Tax Policy?

March 25, 2010
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How Misinformed are Tea Party Protesters About Tax Policy?

For those of you used to reading about international relations, I apologize for the following brief foray into American politics. It appears that the American Enterprise Institute and David Frum have decided to (abruptly) part ways. Before David left, however, he and his team of interns provided some interesting statistical insight into the

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Happy Anniversary NYC R Meetup

March 12, 2010
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Happy Anniversary NYC R Meetup

Today is the one year anniversary of the NYC R Statistical Meetup. Starting as a small group meeting in a crowded conference room, Josh Reich established the meetup as the premiere gathering of data geeks in the tri-state area. Over the past year we have had 10 meetups, and two more upcoming on the

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Spatial Analytics in R Video

February 8, 2010
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The video from John Myles White’s outstanding introductory talk on spatial analysis with R to the NYC R Statistical Meetup is now available in the R video repository, and is also embedded after the jump. I would like to thank John for this fantastic talk, and for those interested the slides from this talk have also been

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Predicting the Locations of ‘Emergency’ Ushahidi Reports in Port-au-Prince, and Implications for Crowdsourcing

February 2, 2010
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Predicting the Locations of ‘Emergency’ Ushahidi Reports in Port-au-Prince, and Implications for Crowdsourcing

Recently, Patrick Meier, PhD candidate at Tufts University and member of the Ushahidi Advisory Board, provided me with a dataset containing the first 72 hours of reports registered with Ushahidi in Port-au-Prince after the January 12th earthquake. First, a huge thank you to Patrick for providing me with this data and the opportunity to analyze

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What Countries are ‘Pulling their Weight’ for Haiti?

January 26, 2010
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What Countries are ‘Pulling their Weight’ for Haiti?

Using the data provided ReliefWeb on the Appeals and Funding to Haiti (h/t DataBlog) and the most recent GNP estimates, I decided to do a little “back of the envelope” analysis. With GNP as a proxy for a country’s wealth, the hypothesis is that pledges should roughly be a linear function of wealth, i.e., the

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Donate to the R Video Hosting Fund

January 17, 2010
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Today I finished uploading a couple new talks to the growing repository of online presentations from the NYC R Statistical Meetup. Going forward, my plan is—whenever possible—to make all talks and presentation materials available online, in an effort to reach as wide an audience as possible. Our volunteer speakers bring immense expertise to these

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Learning R via Python…or the other way around (with video!)

January 8, 2010
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Last night I was one of five speakers at the NYC R Statistical Programming Meetup. The topic last night was dubbed the R Rosetta Stone, and the intent was to show how R as a language translated into several other analytical platforms and programming languages. Other speakers covered MATLAB, SAS, SQL/Postges and Clojure/Incanter—I

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Brief Analysis of Abdulmutallab (Christmas Day bomber) Web Posting Data

December 30, 2009
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Brief Analysis of Abdulmutallab (Christmas Day bomber) Web Posting Data

Thanks to Evan Kohlman at the NEFA Foundation for compiling, and Danger Room for publicizing, the data set of all of Farouk Abdulmutallab’s posts to the Islamic Forum on Gawaher.com. Since Evan took the initiative to download and save the raw HTML data, I thought it would be useful to go one step

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