Monthly Archives: March 2010

Video: ggplot2 Creator Hadley Wickham’s Short Course on Data Visualization Using R

March 23, 2010
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Hadley Wickham, creator of ggplot2, has posted a 2 hour video on data visualization using R. You can find links to the videos and slides over at Revolutions Blog. Check back here soon. I am working with Hadley to arrange a day-long ggplot2 short cours...

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Video: Hadley Wickham gives a short course on graphics with R

March 23, 2010
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Video: Hadley Wickham gives a short course on graphics with R

Hadley Wickham (the creator of the popular ggplot2 graphics package for R) has posted video of a 2-hour short course on Visualisation in R at his blip.tv channel. The video is split into four thirty-minute segments: Basic Graphics Displaying Large Data Data manipulation and transformations Polishing your plots for publication The course is peppered with self-guided exercises, for which...

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Updated Site Map for Jeromy Anglim’s Blog Psychology and Statistics

March 23, 2010
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Every Six months or so I like to update the Site Mapfor my blog jeromyanglim.blogspot.com. Thus, if you're new to the blog, The Site Map provides an overview of previous blog content organised by topic. RSS Feed: https://feeds.feedburner.com/jeromyang...

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Playing with the ‘playwith’ package

March 23, 2010
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Playing with the ‘playwith’ package

Abilities of R for creating graphics is great, but one thing I always missed is the possibility of creating interactive plots and being able to look at graphs while changing one ore more parameters. I know that there is rggobi, but so far I always ran into problems with flexibility each time I wanted to

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ggplot2: Changing the Default Order of Legend Labels and Stacking of Data

March 23, 2010
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ggplot2: Changing the Default Order of Legend Labels and Stacking of Data

“How to change the order of legend labels” is a question that gets asked relatively often on ggplot2 mailing list. A variation of this question is how to change the order of series in stacked bar/lineplots. While these two questions seem to be related, in fact they are separate as the legend is controlled by

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R Tips in Stat 511

March 22, 2010
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R Tips in Stat 511

Here are some (trivial) R tips in the course Stat 511. I’ll update this post till the semester is over. Formatting R Code Reading code is pain, but the well-formatted code might alleviate the pain a little bit. The function tidy.source() in the animation package can help us format our R code automatically. By default

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RInside release 0.2.2

March 22, 2010
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The shiny new 0.2.2 release of RInside has just been uploaded to CRAN; it should hit mirrors tommorow. Sources are also at my RInside page. RInside is a set of convenience classes to facilitate embedding of R inside of C++ applications. It works pa...

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R 2.11.0 scheduled for April 22

March 22, 2010
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Announced this morning on the r-announce mailing list is the impending release of R 2.11.0, scheduled for April 22. As usual, the release soon goes into a beta-test phase, with updated sources to be available on the 22nd and binaries to follow a few days thereafter.

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Charting SVN commits with R

March 22, 2010
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Charting SVN commits with R

Want to get a quick sense of who are the most active committers to your SVN project? Using just a few lines of R code and the SVN log file, reader and new R user Rhys Kidd created this chart to review commits to the Freespace 2 Source Code Project: Rhys posts the 6 lines of R code to...

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New FECHell 0.1.9

March 22, 2010
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Our FEC report file library FECHell has been updated to 0.1.9. The release includes a half dozen bug fixes and the following new features: Speed improvements – Schedule and field names names are matched by compiled regular expressions instead of brute-force string matching, resulting in a ~25% speed increase for large files. DEF file fixes

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