Monthly Archives: December 2011

World Since June 2008

December 6, 2011
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World Since June 2008

For a client meeting, I struggled with how best to illustrate world markets since June 2008.  I used R to produce this, but I’m still not completely satisfied. Anyone have suggestions to improve? From TimelyPortfolio What I thought was inte...

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Using R — Basic error Handing with tryCatch()

December 6, 2011
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The R language definition section on Exception Handling describes a very few basics about exceptions in R but is of little use to anyone trying to write robust code that can recover gracefully in the face of errors. In fact, …   read mo...

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My oh my

December 6, 2011
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My oh my

Noted without comment, visit Biostatistics Ryan Gosling !!! for more gems like the one above.

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Judging panel for Applications of R in Business contest

December 6, 2011
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Now that the final submissions are in for the Applications of R in Business contest, it's time to announce the judging panel who will select the winners for $20,000 in cash prizes from Revolution Analytics. They are: Edd Dumbill, technologist and writer for O'Reilly Media David Menninger, VP & Research Director at Ventana Research Steve Miller, technology writer and...

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Displaying german stock performance with R using ggplot2

December 6, 2011
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Displaying german stock performance with R using ggplot2

I cannot follow stock market developments daily, so I was looking for a quick overview of what had happened in the last week. What would be of interest for me is  “How did German stocks perform over the last 5 days, compared to the last 20 trading days and the last 250 trading days”. R

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An example RNA-Seq Quality Control and Analysis Workflow

December 6, 2011
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I found the slides below on the education page from Bioinformatics & Research Computing at the Whitehead Institute. The first set (PDF) gives an overview of the methods and software available for quality assessment of microarray and RNA-seq experim...

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Visualization of Prosper.com’s Loan Data Part I of II – Compare and Contrast with Lending Club

December 6, 2011
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Visualization of Prosper.com’s Loan Data Part I of II – Compare and Contrast with Lending Club

Due to the positive feedback received on this post I thought I would re-create the analysis on another peer-to-peer lending dataset, courtesy of Prosper.com. You can access the Prosper Marketplace data via an API or by simply downloading XML files that are updated nightly http://www.prosper.com/tools/. If you are going to follow the route I took

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Example 9.17: (much) better pairs plots

December 6, 2011
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Example 9.17: (much) better pairs plots

Pairs plots (section 5.1.17) are a useful way of displaying the pairwise relations between variables in a dataset. But the default display is unsatisfactory when the variables aren't all continuous. In this entry, we discuss ways to improve these dis...

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The new visualization package for genome data in Bioconductor: ggbio

December 6, 2011
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The new visualization package for genome data in Bioconductor: ggbio

It’s been a while since I’ve been waiting for the release of a visualization package in Bioconductor. Back in 2008 I was really impressed by the power of GenomeGraphs and I have used it in multiple occasions. Yet from both the Bioconductor Developer Meeting in Heidelberg 2010 and BioC2011 I’ve been waiting for the release of...

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RcppArmadillo 0.2.32

December 5, 2011
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Conrad Sanderson made the official 2.4.0 release of Armadillo last evening. This was wrapped into RcppArmadillo release 0.2.32 which arrived on CRAN earlier today. The NEWS entries summarising the changes since the 2.2.* series, we already saw mos...

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