In case you missed it: August 2012 Roundup

September 6, 2012

(This article was first published on Revolutions, and kindly contributed to R-bloggers)

In case you missed them, here are some articles from June of particular interest to R users.

RStan is a new package for Bayesian modeling with R. It's faster and can fit more highly-correlated models than the MCMC sampler of BUGS and JAGS.

Biostatistician Corey Chivers used R to animate the epidemic-like growth of retailer Walmart in the US.

Forensics with R. Break-in subjects are identified from the unique marks on tools used for forced entry.

An R script uses NSIDC data to visualize arctic sea-ice, now at the lowest level since satellite observation began.

Community milestones: CRAN passes 4,000 packages, and the Revolutions blog receives 2 million visits.

An analysis suggesting playing baseball shortens lifespans provides a lesson on the difference between causality and association.

Revolution R Enterprise receives Data Science Technology award.

The Rcpp package can translate some R code to C++, with some impressive performance benchmarks.

The 'knitr' package makes it easy to create beautiful reports with text, graphics and code from R and display them on the Web.

Jeffrey Breen's guide to getting started with R and Hadoop.

Ryan Rosario's talk on parallel programming in R covers explicit and implicit parallelism, and map-reduce.

US retailer Williams Sonoma benefits from GAM models in R to optimize marketing.

Revolution Analytics opens office in Singapore.

Factoring inflation, gas/petrol prices in the US and Australia aren't as expensive as they might seem.

A reference card for prediction and classification models in R.

A list of the top 10 packages on CRAN by number of other packages depending on them.

An analysis of traffic on R-help finds busiest/quietest parts of the day, most prolific posters, and popular topics.

Year on year, surveys continue to rank R as the most popular tool for data mining.

Upcoming training classes sponsored by Revolution Analytics: big data analytics, R for Data Mining and Analytics for Marketing.

Hadley Wickham provides an introduction to the Grammar of Graphics with "ggplot2 Basics".

Some non-R stories in the past month included: a simulation of supermassive black holes, lip-synching on Chatroulette, a NASA music video, my bad dog, and a Korean pop hit.

There are new R user groups in San Antonio, Milwaukee and Nicaragua. Meeting times for local R user groups can be found on the updated R Community Calendar.

As always, thanks for the comments and please send any suggestions to me at [email protected]. Don't forget you can follow the blog using an RSS reader like Google Reader, or by following me on Twitter (I'm @revodavid). You can find roundups of previous months here.

To leave a comment for the author, please follow the link and comment on their blog: Revolutions. offers daily e-mail updates about R news and tutorials on topics such as: Data science, Big Data, R jobs, visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web Scraping) statistics (regression, PCA, time series, trading) and more...

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