Monthly Archives: April 2012

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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Compete in the Data Science Hackathon, April 28

April 5, 2012
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All around the world at noon GMT on April 28, data scientists around the world will compete in the world's first one-day International Data Science Hackathon, organized by Data Science London. Participants will receive a data set at the beginning of the event, and work in teams of 3-5 over the following 24 hours to create the best predictive...

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An intro to R

April 5, 2012
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An intro to R

A few weeks back I gave a talk at the local Berkeley R meetup group. The idea was to help people not make the same mistakes I made when I first started out learning R. It was the first time I made an entire presentation with Deck.js and I generated the syntax highlighted R code

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Use file.choose to customize output filenames in R functions

April 5, 2012
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In this post, I want to address the following issue: several data files with a common trame have to be dealt with by an R function. The function should export files (such as images or data files or any other file type). I explain how to create filenames such that the function automatically exports files in the same directory...

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useR! 2012 Deadlines Approaching: Registration, Hotels, Student Scholarships

April 5, 2012
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useR! 2012 Deadlines Approaching: Registration, Hotels,  Student Scholarships

Forwarded from Frank Harrell: DEADLINES FAST APPROACHING – 8th Annual International R User Conference useR! 2012, Nashville, Tennessee USA Registration Deadlines: Early Registration: Passed Regular Registration: Mar 1- May 12 Late Registration: May 13 – June 4 On-Site Registration: June 12 – June 15 Please note: Nashville is offering several large entertainment events the month

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