July 2010

How to install R packages from source on Mac OS X

July 31, 2010 | 0 Comments

In my last post about installing the rgdal R package on Mac OS X, I had apparently glossed over the last step of compiling the R package from source.  I hadn’t realized that Mac OS X actually doesn’t come default with the necessary software to do this.  Most ... [Read more...]

StatProb [wiki]

July 31, 2010 | 0 Comments

Via the [financial and technical] support of Springer, probability and statistics societies are launching a specialised wiki called StatProb. It operates as a wiki in that authors can submit short articles on any topic, with further co-authors joining in later to improve those articles, but with the contents guaranteed via ...
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Read a new book…

July 31, 2010 | 0 Comments

From the book website : IPSUR stands for Introduction to Probability and Statistics Using R, ISBN: 978-0-557-24979-4, which is a textbook written for an undergraduate course in probability and statistics. The approximate prerequisites are two or three semesters of calculus and some linear algebra in a few places. ... [Read more...]

highlight 0.2-2

July 31, 2010 | 0 Comments

I've released highlight 0.2-2 to CRAN. This release adds the possibility to control the font size of the latex code generated by sweave (when using the driver that is provided by highlight) For example, this C++ code (using Rcpp) will be highlight... [Read more...]

Save R plot as a BLOB

July 30, 2010 | 0 Comments

I recently posed a question on stackoverflow on whether anyone knew an efficient way to save an R plot to a MySQL database as a BLOB. My plan was to use my personal desktop to perform R routines and save them to a web server, where they could then be ... [Read more...]

Thinking about Graphs

July 30, 2010 | 0 Comments

A recent Wall Street Journal article ruminated about the degree that language shapes thought (rather than the other way around).  This idea has rather profound implications in the more specific domain of programming languages. We initially learn a...
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Free R Chart iPhone App

July 30, 2010 | 0 Comments

Download the free R-Chart iPhone Application for the latest news and updates from top R web sites... (and this blog too).App Store LinkLeave a comment if you have any feedback or suggestions!
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Because it’s Friday: Double Rainbow

July 30, 2010 | 0 Comments

It's sunny up here in Seattle (I'm attending BioConductor 2010 -- Revolution's a sponsor) now that the morning fog has lifted. So in honor of sunny Friday afternoons, I bring you the Double Rainbow song: (If you've been in a wi-fi-less cave for the past couple of weeks, check out the ... [Read more...]

An analysis of the Wikileaks data with R

July 30, 2010 | 0 Comments

At his Zero Intelligence Agents blog, Drew Conway has taken on the task of performing a quantitative analysis (using R, of course) of the controversial Afghanistan document dump from Wikileaks. He's started with an analysis of the overall flow of information in the five Afghanistan regions, categorized by type of ... [Read more...]

New Fantasy Ball Junkie Article

July 30, 2010 | 0 Comments

I have a new post up over at Fantasy Ball Junkie looking at the value of closers in H2H leagues from here on out. I simply simulated in the same way as the Stolen Bases and Home Runs articles from before. Saves are an interesting bunch, and it really...
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Visualizing 3d data – plotting quartiles separately

July 30, 2010 | 0 Comments

In this previous post, we’ve looked at displaying three dimensional data.  One major problem is when there is a high density of data, it can be difficult to see what’s going on in a 3 dimensional plot. One way of looking at the data in more detail is to ... [Read more...]

Using Optmatch and RItools for Observational Studies

July 29, 2010 | 0 Comments

I am a contributor to the optmatch and the RItools packages for R. These two packages are separate, but complimentary. Both packages provide tools for adjusting observational data to exhibit “balance” on observed covariates. In a randomized control trial, treatment and control groups should have identical distributions over all covariates, ... [Read more...]

The Mule goes SURFing

July 29, 2010 | 0 Comments

A month ago I posted about “SURF”, the newly-established Sydney R user forum (R being an excellent open-source statistics tool). Shortly after publishing that post, I attended the inaugural forum meeting. While we waited for attendees to arrive, a few people introduced themselves, explaining why they were interested in R ... [Read more...]

RcppArmadillo 0.2.4

July 29, 2010 | 0 Comments

A new release of RcppArmadillo is now on CRAN. RcppArmadillo makes it easy to write highly efficient and highly readable C++ code for linear algebra (based on Armadillo) in R extensions (using Rcpp for the interface). This release upgrades the incl... [Read more...]

Red-R

July 29, 2010 | 0 Comments

Red-R seems to have some interesting ideas behind it. Of course it needs some time to mature.
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IMIS & AMIS

July 29, 2010 | 0 Comments

A most interesting paper by Adrian Raftery and Le Bao appeared in the Early View section of Biometrics.  It aims at better predictions for HIV prevalence—in the original UNAIDS implementation, a naïve SIR procedure was used, based on the prior as importance function, which sometimes resulted in terrible ...
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Pie Charts in ggplot2

July 29, 2010 | 0 Comments

...and other isomorphic data shape presentations...The Pie Chart has been widely criticized in recent times by statisticians.  Edward Tufte goes as far as to call this the "prevailing orthodoxy."  The reasons generally cited:The rel...
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A free book on probability and statistics with R

July 29, 2010 | 0 Comments

G Jay Kerns has published a 400+ page introductory text on Probability and Statistics. All of the examples and illustrations are done using R (as Jay puts it, "The people at the party are Probability and Statistics; the handshake is R") so if you want to brush up on your probability ... [Read more...]
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