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Here's a new picture of the devastation wrought by Katrina in 2005. This image shows the maximum wind speeds of the hurricane, not at any particular point of time, but over the duration of the entire storm:

If you're an absolute beginner to the R language, this Intro to R video series from Google Developers is a great place to get started. Just download R for your system, start the playlist below, and follow along with the on-screen examples.

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

A new 90-second, creative commons video helps R enthusiasts share the history, community and applications of R.

Analyst group Butler Analytics reviews 10 predictive analytics platforms, and says that "real analysts use R".

by Joseph RIckert

Nate Silver of 538 fame gave the President's invited address this year at the Joint Statistical Meeting in Montreal.

This guest post is by Punit Kulkarni. Punit is the Director of Marketing at Symphony Analytics and a marketing technology enthusiast. He has helped Fortune 500 retailers and brands in building their customer loyalty programs, direct marketing and business analytics.

This guest post is by Rodolfo Vanzini. Rodolfo is senior partner at eXponential.it — an asset management consultancy based in Italy — and advises clients on investment management issues. He taught at the University of Siena and is an analytics professional.

Back in May, Twitter's Miguel Rios created some beautiful data visualizations to show that with enough (i.e. billions) of geotagged tweets, you can reveal the geography of where people live, work and commute. Now, a new interactive visualization of 210 million geotagged tweets by AT&T Research Labs reveals the market share of iPhone, Android and Windows smartphones down to the smallest geographic levels. 

I've been playing a fair bit of Civilization V: Brave New World recently (a great game, BTW), and one of my favourite parts of the game is the animated map at the end of the game showing the rise and fall of the (virtual) civilations across the globe, and the associated charts showing their dominance through time. Around 1932, John Sparks made a real-world chart for our actual historic civilizations for McNally (now out of print, sadly), and it stood more than six feet tall!

Job-tracking site indeed.com shows the rate at which certain terms appear in job advertisements. As you can see from the chart below, demand for R language skills is on the rise, while the number of SAS-related job postings peaked in late 2010 and has been declining steadily since early 2012.