Monthly Archives: June 2010

Prototype: More Web-Friendly Visualizations in R

June 12, 2010
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I've spent some more time thinking about how best to put together the package for creating web-friendly, interactive data visualizations in R. I have a pretty substantial JavaScript package that does a lot of basic visualizations now, and it's really exciting to see where this is going. With this in mind, I'm releasing a new

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New R User Group in Atlanta

June 11, 2010
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There's a new R User Group in Atlanta, GA. Well, it's not exactly new -- they've already had their first meeting -- but due to a cock-up on my part I failed to announce it at the time. (Memo to self: don't forget to star emails in Gmail that you have to follow up on!) There's a Google Group...

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The R Revolution on TV

June 11, 2010
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The R Revolution on TV

I never thought I would ever embed videos from FOX on my blog, but this one needs to be covered: Watch the latest business video at video.foxbusiness.com Watch SPSS co-founder Norman Nie talking about the “… unbelievably powerful open source language called R …” and “… I am not sure that SPSS is our biggest

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Performance benefits of linking R to multithreaded math libraries

June 11, 2010
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R wasn't originally designed as a multithreaded application -- multiprocessor systems were still rare when the R Project was first conceived in the mid-90's -- and so, by default, R will only use one processor of your dual-core laptop or quad-core desktop machine when doing calculations. For calculations that take a long time, like big simulations or modeling of...

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The Deepwater Horizon, in context

June 11, 2010
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The Deepwater Horizon, in context

The Earth is pretty big. Give or take, it's about 36,000 feet (11km) to the height of a 747 soaring above Everest, and (in pleasing symmetry) about the same distance down the bottom of the Mariana Trench. (Nonetheless, if you shrunk the Earth down to scale, it would still be smoother than a billiard ball.) So I was surprised...

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Quantitative Candlestick Pattern Recognition (HMM, Baum Welch, and all that)

June 10, 2010
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Quantitative Candlestick Pattern Recognition (HMM, Baum Welch, and all that)

Fig 1. Clustering based approach to candlestick Pattern Recognition. I've been reading a book titled, 'the Quants,' that I'm sure will tantalize many traders with some of the ideas embedded within. Most notably (IMO), the notion that Renaissance's Jame...

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R on TV

June 10, 2010
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Had a fun day today in a TV studio for Fox Business News, where Revolution CEO Norman Nie was giving an interview to Liz Claman at Fox Business Network. As you might expect, the interview focused a lot more on the business side than on technical capabilities of Revolution R, but there was some good discussion of the impacts...

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Plotting BP Oil Spill Testing Data using R

June 10, 2010
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Plotting BP Oil Spill Testing Data using R

The Deepwater Horizon Incident is in the U.S. headlines and on many peoples minds. The folks over at Revolution Analytics were even discussing this subject today. Several government sites including the NOAA have sections dedicated to the problem. In...

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oro.nifti 0.1.5

June 10, 2010
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The latest version of oro.nifti (0.1.5) has been released on CRAN.  New features include:Reduced overall size of the package by 50%Minor improvements; for example, the XML package is no longer required as indicated from the DESCRIPTION file ...

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oro.nifti 0.1.5

June 10, 2010
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The latest version of oro.nifti (0.1.5) has been released on CRAN.  New features include:Reduced overall size of the package by 50%Minor improvements; for example, the XML package is no longer required as indicated from the DESCRIPTION file ...

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