R Stuff

R at Wikimania

August 8, 2011 | Adam.Hyland

Wikimania 2011 came to a close yesterday. For those of you unfamiliar with Wikimania it may be described as UseR for Wikipedia, Wikimedia and MediaWiki all rolled into one. The conference brings together staff, volunteer editors, volunteer developers and users of MediaWiki projects. Of specific interest to R Bloggers readers may ... [Read more...]

R at Wikimedia

July 9, 2011 | Adam.Hyland

Last year Wikipedia rolled out a pilot program to use Wikipedia article creation as an assignment in the classroom. Students wrote articles on a topic area and rather than turning them into a professor and forgetting about it they upload it to Wikipedia and expose it to readers around the ... [Read more...]

Wikipedia for Kaggle Participants

July 1, 2011 | Adam.Hyland

Kaggle has released a new data-mining challenge: use data from 10 years of Wikipedia edits in order to predict future edit rates. The dataset has been anonymized in order to obscure editor identity and article identity, simultaneously adding focus to the challenge and robbing the dataset of considerable richness. I have ... [Read more...]

No, steal *this* blog!

June 23, 2011 | Adam.Hyland

Should the world of R Wikibooks require a precis on truncated distributions, marijuana prices, or an obtusely coded method to visualize orthogonal least squares (spoiler alert: dot products are easier!), I’m your man! I hereby release all of the content and code in the R stuff category under the ... [Read more...]

Resources for Learning R (from books to blogs)

May 17, 2011 | Adam.Hyland

The information below will be periodically updated at the folowing permanent link: http://www.backsidesmack.com/r-resources/ Searching for information on R sucks. Not only is the language name a letter of the alphabet (an ignominy it shares with C and some less well known languages), there is Pearson’s ... [Read more...]

Measuring Price Dispersion of Marijuana

April 12, 2011 | Adam.Hyland

The intersection of mapping APIs, fast database operations and user engagement offers a lot of very cool crowdsourcing applications ranging from the benign and powerful (Google’s Person Finder) to the minor and questionable (A DUI checkpoints app). Most intriguing in … Continue reading → [Read more...]

A Simple Instrumental Variables Problem

March 29, 2011 | Adam.Hyland

When working with labor economics, we often run into issues with selection on variables of interest. Regressing earnings on years of education to estimate the human capital earnings function makes sense at first blush until we imagine that education is … Continue reading → [Read more...]

Radiation levels at Fukushima

March 24, 2011 | Adam.Hyland

From BWR The above graph is derived from data scraped from TEPCO press releases. Every hour or so for the first few days of the crisis, a TEPCO van would record radiation (probably Beta/Gamma, but the translation is unclear) at … Continue reading →
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