Blog Archives

R is Hot: Part 1

October 7, 2010
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This is Part 1 of a five-part article series, with new parts published each Thursday. You can download the complete article from the Revolution Analytics website. How Did a Statistical Programming Language Invented in New Zealand Become a Global Sensation? Much in the same way that social networking, reality TV and craft beer were considered marginal fads before gaining...

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R is Hot

October 6, 2010
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Our mission at Revolution Analytics is to make R the statistical analysis tool of choice in the workplace. But even though R is pervasive in academia and rising in popularity generally, we still sometimes get blank faces when we demonstrate R to potential new clients. Sure, most people have heard of R -- it's been hard to miss in...

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The Data Science Venn Diagram

October 5, 2010
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The Data Science Venn Diagram

Whenever I'm asked, "Who uses R?", I usually rattle off a long list of job titles: statistician, analyst, quant, researcher ... and that's before all the domain-specific titles. It would be nice if there were a simple, succinct phrase to describe the process of working with, analyzing, and communicating with real data. At the new blog, "dataists", the inaugural...

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Code Snippets in Revolution R

October 4, 2010
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Ajay Ohri has been trying out the Code Snippets feature in Revolution R (available free to academics), and has found it handy for writing code for statistical analysis: Now even if you are averse to using a GUI /or GUI creators don’t have your particular analysis you can basically type in code at an extremely fast pace. It is...

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Because it’s Friday: I hate pennies

October 1, 2010
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I was brought up in Australia, where we got rid of 1¢ and 2¢ coins in my childhood. Nobody missed them, at least as I recall. I certainly didn't: they were useless, even at the age when I might by lollies (candy) for 2¢ apiece. But then again, I'd never buy one, and with the new changes if I...

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Fibonacci 1-liners

October 1, 2010
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The other day, as an excuse to play around with custom iterators, I created some completely over-engineered code to calculate the Fibonacci sequences. But surely such a simple function can be implemented in fewer than my 15 lines? (Rick Wicklin, who writes the SAS blog The Do Loop, thinks so too.) We could use such a function to more...

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Mandelbrot Set, evolved

September 30, 2010
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Mandelbrot Set, evolved

The Mandelbrot Set is perhaps the most famous fractal of all time. It's simple in its definition: iterate the complex equation zn+1 = zn2 + c (starting with z0 = 0) for various values of c, and if doesn't go to infinity then c is part of the Mandelbrot Set. The result, however, is amazingly complex. Thinking of c...

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NewTwitter design based on a Golden Spiral

September 29, 2010
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NewTwitter design based on a Golden Spiral

I finally got the new version of Twitter yesterday, and it looks great. And that's no accident: according to the designer, the layout of the new Twitter interface is based on the Golden Spiral: You can describe the Golden Spiral by laying consecutive squares in a spiral fashion, each square being smaller than the last by a factor of...

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Google Summer of Code advances R

September 28, 2010
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For the third year running, the Google Summer of Code program has sponsored a number of students working with R, and has again resulted in several new contributions expanding R in various fields. Dirk Eddelbuettel, who coordinated the R-related projects for GSoC in 2010, summarized the results, with details about the new packages now available for R thanks to...

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Some hints for the R Beginner: Avoiding "blank screen syndrome"

September 27, 2010
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For new users, starting R for the first time can be a little daunting. Luckily, Patrick Burns of Burns Statistics has put together a handy tutorial to help the first-time R user get beyond "blank screen syndrome": So you have successfully started R on your machine. Here's where the trouble sometimes starts -- there's a big, huge prompt daring...

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