December 2010

Recent developments in the drug war

December 1, 2010 | Diego Valle-Jones

The Mexican government recently released data on all crime statistics from January 1997 to October 2010, as reported by the various police forces operating in Mexico. This information provides an unprecedented look at what has happened since the drug war began and allows for a frank assessment of the deterioration of security ... [Read more...]

Online Resources for Learning R

December 1, 2010 | Josh Paulson

Online classes are an easy and convenient way to learn more about a topic of interest. Not surprisingly, there are a variety of online resources, free and otherwise, to learn more about R. From online graduate classes, to the more “learn at your own pace” approach, here are some resources ... [Read more...]

Le Monde puzzle [48]

December 1, 2010 | xi'an

This week(end), the Le Monde puzzle can be (re)written as follows (even though it is presented as a graph problem): Given a square 327×327 symmetric matrix A, where each non-diagonal entry is in {1,2,3,4,5} and , does there exist a triplet (i,j,k) such that Solving this problem in R ... [Read more...]

How to create PDF reports with R

December 1, 2010 | David Smith

Sweave is a literate programming system included with R. It makes it possible to create a PDF document containing not just text, but also tables and charts generated from R. The process is automated, so once you've created an Sweave document (which includes both LaTeX text markup and R commands), ... [Read more...]

RcppGSL 0.1.0

December 1, 2010 | Thinking inside the box

Earlier in the year, Romain and I did a bunch of initial work on a wrapper from R to the GNU GSL by way of our Rcpp package for seamless R and C++ integration. But other work kept us busy and this fell a little to the side. We have ... [Read more...]

Top 10 things that suck about Sweave

December 1, 2010 | Mario Pineda-Krch

People rave about Sweave and the literate programing paradigm and I am guilty as charged. I speak Sweave, I think Sweave, I dream Sweave. As a matter of fact my default mode of operation is Sweave and anything else is an … Continue reading → [Read more...]
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