Monthly Archives: June 2009

Simulation of Burning Fire in R

June 11, 2009
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Simulation of Burning Fire in R

inlin Yan posted a cool (hot?) simulation of burning fire with R in the COS forum yesterday, which was indeed a warm welcome. I’m not sure whether our forum members will be scared by the “fire” under the title “Welcome to COS Forum”. The fire was mainly created by the function image() with

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Creating Tag Cloud Using R and Flash / JavaScript (SWFObject)

June 10, 2009
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Creating Tag Cloud Using R and Flash / JavaScript (SWFObject)

ag cloud is a bunch of words drawn in a graph with their sizes proportional to their frequency; it’s widely used in blogs to visualize tags. We can observe important words quickly from a tag cloud, as they often appear in large fontsize. Tony N. Brown asked how to “graphically represent frequency of words in

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Hack-at-it 2009

June 9, 2009
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Hack-at-it 2009

The annual GGobi hack-at-it was held June 5-7 in Ames Iowa. The main directions of work areDevelopment of a new canvas for R supporting interactive and dynamic graphics. Michael is leading the effort on this. Higher level routines for supporting brushi...

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Data Mashups in R from O’Reilly

June 9, 2009
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Data Mashups in R from O’Reilly

O’Reilly has published Data Mashups in R as a $4.99 PDF download in their Short Cut series. In 27 pages it takes you through an example of how to combine foreclosure information with maps and geographical information...

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Two plot with a common legend – base graphics

June 6, 2009
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Two plot with a common legend – base graphics

If you need to share a common legend between two graphs using the ggplot2 package/paradigm take a look at this post from the Learning R blog.The code below solves the same task using the R base graphics.png( "2plot1legend.png", width = 480, height = 68...

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Learning R for Researchers in Psychology

June 6, 2009
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Learning R for Researchers in Psychology

R is a powerful environment for statistical computing. Here is a selective list of resources on R with an emphasis on resources useful for researchers in psychology.Psychology specific R resourcesR Notes for Experimental PsychologyWilliam Revelle's Psy...

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Elementary Statistics with R

June 5, 2009
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Elementary Statistics with R

Ever wonder how to finish your statistics homework real fast? Or you just want a quick way to verify your tedious calculations in your statistics class assignment. We provide an answer here by solving statistics exercises with R. read more

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Getting started with R (for german speakers)

June 5, 2009
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Getting started with R (for german speakers)

Just a little note for german speaking R beginners: There is an introductory course in R (german) available online on the website of the department of methodology and evaluation research at the University of Jena. Dr. Ivailo Partchev holds a seven sess...

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Twitter from R… Sure, why not!

June 4, 2009
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Twitter from R… Sure, why not!

So I have started following the #RStats tag in twitter. Prior to a week ago I had never Twitterbated so I thought I would give it a go since I am not one to shy away from new technology… much. I think of Twitter like a call in radio show where I get to cut

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Check our PMML article – The R Journal

June 3, 2009
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Check our PMML article – The R Journal

Zementis, in collaboration with Togaware, produced an article describing PMML and the PMML Package available for exporting predictive models built in R.The article is featured in the first edition of The R Journal. Check it out:PMML: An Open Standard f...

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