I take an almost unhealthy pleasure in pushing my computer to its limits. This has become easier with Revolution R and its free license for academic use. One of its best features is debugger that allows you to step through … Continue reading →
Monthly Archives: June 2010
Efficient Mixed-Model Association eXpedited (EMMAX) to Simutaneously Account for Relatedness and Stratification in Genome-Wide Association Studies
A few months ago I covered an algorithm called EMMA (Efficient Mixed-Model Association) implemented in R for simultaneously correct for both population stratification and relatedness in an association study. This method/software is very useful because ...
Stratified sampling
The recently arXived paper of Goldstein, Rinott and Scarsini studies the impact of refining a partition on the precision of a stratified maximising/integration Monte Carlo approach. Quite naturally, if the partition gets improved, simulating points in each set of the partition can only improve the quality of the approximation, whether the problem is in maximising 
Go Guerrill-R on Your Data in August
Guerrill-R, get it? Register now for the Guerrilla Data Analysis Techniques (GDAT) class to be held during the week of August 9-13, 2010. The focus will be on using R and the PDQ-R for computer performance analysis and capacity planning.(Click on the...
Plotting World Bank Data with R
Copy and paste the code listed in this post below, and you can create a plot of World Bank data using R with a call like the following:plotWorldBank('USA','NY.GDP.MKTP.KD.ZG')There is a wealth of economic and demographic available at the World Bank. ...
Rcpp 0.8.1
Early this morning I sent Rcpp version 0.8.1 off to CRAN and Debian. In the meantime, Romain has already provided a very nice blog post about it. There are a few fairly visible new things in this release. As we want to focus the next few minor release...
Rcpp 0.8.1
Early this morning I sent Rcpp version 0.8.1 off to CRAN and Debian. In the meantime, Romain has already provided a very nice blog post about it. There are a few fairly visible new things in this release. As we want to focus the next few minor rel...
PostGIS in Action Book Review
I was recently asked to review a soon to be published book on PostGIS, a spatial extension to the very popular Postgresql relational database. I was very excited about receiving an early copy of this book, as the authors have provided countless tips, ...
R is eve R ywhe R e
R did definitely not start to be THE statistical computing tool. The “two Rs” in far down-under just needed some tool which was not too expensive and structured enough to support the elementary statistics classes filled with hundreds of students. Another constraint was the computing lab which was large enough, but “only” filled with Mac
Norman Nie talks R and statistics with CNET’s Dave Rosenberg
Revolution's CEO Norman Nie recently gave an interview to CNET's Dave Rosenberg, who blogs on disrupting the software market. Among the topics covered: What is R (Nie: "R is the most powerful statistical computing language on the planet"), what is predictive analytics ("statistical modeling by another name") and plans for Revolution R ("we intend to bring predictive analytics to...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
