Monthly Archives: June 2010

General steps to compile JAGS in a Linux based OS system and install rjags in R

June 6, 2010
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I have an entry here about how to install JAGS and rjags in Fedora.  However, I have exchanged emails with Robert Dorazio and Dr. Martyn Plummer.  Here are the easier steps to compile JAGS and install rjags in R. 1. After you extract the source code...

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JAGS, rjags, and coda packages for Fedora

June 6, 2010
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Christopher has the RPMs (for Fedora users) for JAGS, coda, and rjags on his blog. The specific blog entry is here: http://cddesjardins.wordpress.com/2010/06/04/jags-package-for-fedora-13-64-bit/ If you have trouble installing JAGS or rjags in Fedora,...

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The 1000 most-visited sites analyzed using R

June 5, 2010
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The 1000 most-visited sites analyzed using R

Ever wondered about which Computer and Electronics web sites get the most Page Views? Based upon data recently published by Google:The R program to create this graph is as follows:library(XML)# URL for the Google Datau="http://www.google.com/adplanner...

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static symbols too?

June 5, 2010
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Continuing in the context of this previous post… 1. Select a static symbol from the R sources, like Connections $ grep "static Rconnection Connections" src/main/connections.c static Rconnection Connections; 2. Get its address $ objdump -t `R RHOME`/bin/exec/R | awk '/ Connections/ {print $1}' 000000000093b700 3. Use the symbol > library(inline) > code <- " +

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Free Online Statistics Books

June 5, 2010
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Free Online Statistics Books

Sources as varied as Google's Chief Economist Hal Varian and threatening online personalty (offensive language warning) Zed Shaw have recognized a growing need for professionals with solid statistical skills to meet the technical challenges facing the ...

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“Programming with Data – a Guide to the S Language” by John Chambers

June 5, 2010
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“Programming with Data – a Guide to the S Language” by John Chambers

Another unashamedly subjective book review - but first a little more about my history as it relates to R...A few years ago, I was doing some systems administration work at an industrial company for whom IT was a cost center. I wanted to illustrate to...

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GUI chart formatting with playwith

June 4, 2010
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GUI chart formatting with playwith

There are a huge number of plots, annotations and parameters available in R for constructing charts and graphics. While looking through the R Programming wikibook I noticed a reference to a library called playwith. It provides a GUI that allows you ...

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On particle learning

June 4, 2010
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On particle learning

In connection with the Valencia 9 meeting that started yesterday, and with Hedie‘s talk there, we have posted on arXiv a set of comments on particle learning. The arXiv paper contains several discussions but they mostly focus on the inevitable degeneracy that accompanies particle systems. When Lopes et al. state that is not of interest

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Hack-at-it 2010

June 4, 2010
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Hack-at-it 2010

Members of the team met for the second time in 2010, to work on a new interactive graphics canvas for R. The current stage of the project can be found at R-forge: qtinterfaces contains the new canvas, and plumbr contains the new mutable data frame stru...

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Because it’s Friday: Stochastic degradation

June 4, 2010
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When you upload a video to YouTube, they don't store a perfect digital copy of your media file. The video is actually re-encoded into the MPEG-4 video format. This saves space on YouTube's servers, but also introduces some random degradation to the video (as a result of the lossy compression process). So what happens if you then save that...

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