Blog Archives

Easy data maps with R: the choroplethr package

January 21, 2014
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Easy data maps with R: the choroplethr package

Choropleth maps are a popular way of representing spatial or geographic data, where a statistic of interest (say, income, voting results or crime rate) are color-coded by region. R includes all of the necessary tools for creating choropleth maps, but Trulia's Ari Lamstein has made the process even easier with the new choroplethr package now available on github. With...

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In case you missed it: December 2013 Roundup

January 17, 2014
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In case you missed them, here are some articles from December of particular interest to R users: A ComputerWorld tutorial on basic data processing with R. Prediction: R will replace legacy SAS solutions and go mainstream. A chart of the growth of R user groups and local R meetings. I discussed R, data science and big data in an...

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In data scientist survey, R is the most-used tool (other than databases)

January 15, 2014
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In data scientist survey, R is the most-used tool (other than databases)

O'Reilly has just published the results of the Data Scientist Salary Survey, based on data collected from attendees of the O'Reilly Strata conferences in 2012 and 2013. There were some interesting results from the salary portion of the survey: data scientists at early-stage startups earned a median salary of US$130,000 data scientists at public companies earned a higher median...

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Where the whisky flavor profile data came from

January 14, 2014
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Where the whisky flavor profile data came from

Our crack-shot R trainer Luba Gloukhov generated a spirited (pun intended!) discussion from her post K-means Clustering 86 Single Malt Scotch Whiskies, with mentions of her analysis at FlowingData and Reddit amongst others. Other bloggers took a look at the data too, notably Christopher Ingraham who created this beautiful infographic of the flavour profiles of the 86 whiskies from...

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Guest Blogger Recap

January 13, 2014
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We had a marvellous series of guest posts here on the blog over the past few weeks. I'd like to give a special thanks to all of our guest bloggers for contributing, with special thanks to Joe Rickert for stepping in as our acting editor for the past 3 weeks. If you were celebrating or vacationing over the holidays,...

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The Fourier Transform, explained in one sentence

January 3, 2014
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The Fourier Transform, explained in one sentence

If, like me, you struggled to understand the Fourier Transformation when you first learned about it, this succinct one-sentence colour-coded explanation from Stuart Riffle probably comes several years too late: Stuart provides a more detailed explanation here. This is the formula for the Discrete Formula Transform, which converts sampled signals (like a digital sound recording) into the frequency domain...

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Happy New Year!

January 1, 2014
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It's a brand new year, and the Revolutions blog is now three weeks into its sixth year. Hard to believe that a little over five years ago this was the only R-related blog; now there are more than 450 and the R project and the R community continue to thrive and grow. To bring in the new year, I...

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Big Data Analytics predictions for 2014

December 31, 2013
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As we close out the year, we asked a few members of the Revolution Analytics team to make a few predictions about big data analytics, data science and R for 2014. Here's what they came up with (including a few from yours truly). Michele Chambers, Chief Strategy Officer and VP Product Management While the sexiest job in 2013 was...

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Welcoming our Guest Bloggers

December 20, 2013
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I'm heading out on vacation shortly but don't worry: we have a fantastic series of guest bloggers contributing to the Revolution blog for the next 3 weeks. We'll have posts from the Revolution Analytics development team, contributions from prominent R community members, and industry experts. And I'll still pop in from time to time with a few pre-scheduled surprises....

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The distribution of Twitter follower counts

December 18, 2013
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The distribution of Twitter follower counts

My Twitter account @revodavid has, of this writing, 8828 followers. But is that below or above average amongst active Twitter accounts? Since Twitter doesn't publish statistics of follower counts, I've really had little idea. Until now, that is, because Jon Bruner has done some independent research to estimate the distribution of number of followers amongst active Twitter users. Bruner...

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