Blog Archives

ggplot2 GSOC progress

July 8, 2010
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ggplot2 GSOC progress

Progress on the ggplot2 user interface is coming along. Please check out this VLOG which will give a good idea of where I currently am in the process. http://neolab.stat.ucla.edu/cranstats/vlog2.mov As always comments and suggestions are welcome. If you would like to try it out yourself, you can install the development version of Deducer using install.packages("Deducer",,"http://www.rforge.net",type="source")

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New versions for ggplot2 (0.8.8) and plyr (1.0) were released today

July 6, 2010
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New versions for ggplot2 (0.8.8) and plyr (1.0) were released today

As prolific as the CRAN website is of packages, there are several packages to R that succeeds in standing out for their wide spread use (and quality), Hadley Wickhams ggplot2 and plyr are two such packages. And today (through twitter) Hadley has updates the rest of us with the news: just released new versions of plyr and ggplot2. source...

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Visualization of regression coefficients (in R)

July 2, 2010
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Visualization of regression coefficients (in R)

Update (07.07.10): The function in this post has a more mature version in the “arm” package. See at the end of this post for more details. * * * * Imagine you want to give a presentation or report of your latest findings running some sort of regression analysis. How would you do it? This was exactly the question...

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Contest: Road Traffic Prediction for Intelligent GPS Navigation

June 30, 2010
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Contest: Road Traffic Prediction for Intelligent GPS Navigation

About prize baring contests Competition with prizes are an amazing thing. If you are not sure of that, I urge you to listened to Peter Diamandis talk about his experience with the X prize (start listening at minute 11:40): At short – prizes can give up to 1 to 50 ratio of return on investment of the people giving...

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ggplot2 GUI progress

June 19, 2010
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ggplot2 GUI progress

(Written by Ian Fellows) Below is a link to the first of a weekly (or bi-weekly) screen-cast vlog of my progress building a GUI for the ggplot2 package. http://neolab.stat.ucla.edu/cranstats/gsoc_vlog1.mov comments and suggestions are more than welcome, and can e-mailed to me at: [email protected]

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Clustergram: visualization and diagnostics for cluster analysis (R code)

June 15, 2010
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Clustergram: visualization and diagnostics for cluster analysis (R code)

About Clustergrams In 2002, Matthias Schonlau published in “The Stata Journal” an article named “The Clustergram: A graph for visualizing hierarchical and . As explained in the abstract: In hierarchical cluster analysis dendrogram graphs are used to visualize how clusters are formed. I propose an alternative graph named “clustergram” to examine how cluster members are assigned to clusters as...

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June 20, online Registration deadline for useR! 2010

June 13, 2010
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useR!2010 is coming. I am going to give two talks there (I will write more of that soon), but in the meantime, please note that the online registration deadline is coming to an end. This was published on the R-help mailing list today: ————- The final registration deadline for the R User Conference is June 20, 2010, one week...

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Could we run a statistical analysis on iPhone/iPad using R?

June 8, 2010
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Could we run a statistical analysis on iPhone/iPad using R?

Imprtent update to the post (17.07.10) I now came across David smith’s post on the REvolution blog, pointing to instruction on the R wiki for how to install R on the iPhone! I didn’t try it myself since it both requires jailbreaking the iPhone, and I don’t have an iPhone. But it is still interesting to know of. Preface...

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Syncing files across computers using DropBox

May 29, 2010
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Syncing files across computers using DropBox

Motivation In the past few months I have been using DropBox for syncing my work files between my home and work computer. It has saved me from numerous mistakes and from sending the files to myself via e-mail. Recently I found this service highly useful for sharing files with 4 other people with whom I am working on a...

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Helping the blind use R – by exporting R console to Word

May 22, 2010
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Preface – R seems a natural fit for the blind statistician For blind people who wish to do statistics, R can be ideal. R command line interface offers straight forward statistical scripting in the form of question (what is the mean of x) followed by an answer (0.2). That is, instead of point-and-click dialog boxes with jumping windows of...

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