Monthly Archives: April 2012

Writing reproducibly in the open with knitr

April 7, 2012
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Writing reproducibly in the open with knitr

Sweave is something of a gold standard in reproducible research. It creates a dynamic document, written in a mix of LaTeX and R code where the results of the analysis (numbers, figures, tables) are automatically generated from the code and inserted into the resulting pdf document, making them easy to update if the data or

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An R programmer looks at Julia

April 7, 2012
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In January of this year I first saw mention of the Julia language in the release notes for LLVM. I mentioned this to Dirk Eddelbuettel and later we got in contact with Viral Shahregarding a Debian package for Julia. There are many aspects of Julia tha...

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Temperature Change in Ireland

April 7, 2012
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Temperature Change in Ireland

Has Ireland gotten any warmer? Ask any punter on the street and they will happily inform you of wild swings, trends and dips. “Back when I was a child”, “when I was younger”, or “years ago” are the usual refrains. What’s the evidence? To answer this, I will use the temperature data from my previous

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Install R 2.15 and further versions in Debian Squeeze

April 6, 2012
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The last Friday, March 30th, the last stable version of R, the version 2.15.0 was released.So, to install it in Debian Squeeze, or in another Distro powered by Debian (I actually use CrunchBang Linux), just follow the same instructions described here f...

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The race for speed at the data layer

April 6, 2012
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The competition amongst database vendors to create the fastest, most powerful "data layer" — the hardware and software to provide storage for Big Data with high-performance data processing — is clearly heating up. The Netezza appliance has been so successful that IBM has been racing to keep up with demand. SAP is also seeing success with its HANA in-memory...

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RNA-Seq Methods & March Twitter Roundup

April 6, 2012
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There were lots of interesting developments this month that didn't work their way into a full blog post. Here is an incomplete list of what I've been tweeting about over the last few weeks. But first I want to draw your attention to the latest manuscri...

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R-Bloggers’ Web-Presence

April 6, 2012
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We love them, we hate them: RANKINGS!Rankings are an inevitable tool to keep the human rat race going. In this regard I'll pick up my last two posts (HERE & HERE) and have some fun with it by using it to analyse R-Bloggers' web presence. I will use...

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Nonconvexity, and playing indoor paintball

April 6, 2012
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Nonconvexity, and playing indoor paintball

Following the two previous posts (here and there), on the number of people that don't get wet while playing with water pistols, consider now an indoor version, in a non-convex room (i.e. player behind wall are now, somehow, protected). In the previ...

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Dynamite plots in R

April 6, 2012
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Dynamite plots in R

For some time I've contemplated creating a function for creating the dynamite plots beloved by many of the applied sciences. There's a lot of criticism regarding their utility, and there are several ways that present data in a more intelligible way. A search on the subject brings up pages with such emotive titles as "Dynamite plots: unmitigated evil?"...

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The 50 most used R packages

April 5, 2012
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The 50 most used R packages

Ask anyone what makes R a great language, one argument that often comes back is its very active community. Proof is the impressive number of packages contributed by developers from all horizons and backgrounds. The CRAN website alone lists 3,725 p...

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