My colleague Saar Golde was having some troubles connecting Revolution R to MySQL on Windows (64-bit). Turned out the problem was the lack of an environment variable. He documented the instructions for fixing the problem on Windows 7, below. Thanks, Saar! The Problem: A client is about to send me a ... [Read more...]

Jay Emerson, professor of statistics at Yale University, introduces basic core functions for simple debugging in R, including print(), cat() and browser(). This talk was presented at the NYC R Statistical Programming Language Meetup on June 3, 2010. [Read more...]

There are many reasons to create an R package, such as codes protection, convenient usage, etc. However, creating an R package in Unix is not hard, it IS in Windows, as R is designed in a Unix environment which includes a set of compilers, programming utilities, and text-formatting routines while ... [Read more...]

Yesterday morning, Romain pushed inline release 0.3.5 to CRAN. This is some ways a continuation of the 0.3.4 release I had made in December. That release had opened the door for the wide use of inline in our Rcpp package. And just how Rcpp has gro... [Read more...]

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O'Reilly is hosting a conference on June 9 on the topic of the analysis of large data sets. The title of the conference is Making Data Work: Ever since Hal Varian proclaimed that data analysis is the sexy career for the coming decade, people have been talking about data. And big ... [Read more...]

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As a discipline, Political Science -- the analysis of the theory and practice and politics -- has been around for quite a while. (Our own CEO here at Revolution Analytics, Norman Nie, has been a leading academic and author in the field for over 40 years.) But it's only in recent ... [Read more...]

It does not quite respect the one color only requirements of the mango's t-shirt contest, but I played with Shape Collage and the graphics from the graph gallery to make this [Read more...]

I reverted the name of the tty connection that I described previously, to “serial” connection and updated the patch to R 2.11.1. This name is more appropriate to its function and also makes way for another patch I am working on which implements the full POSIX terminal interface (essentially all of ... [Read more...]

PROS ARE NOT GETTING BETTER AT FREE THROWS Rick Larrick recently told Decision Science News that baseball players have been getting better over the years in a couple ways. First, home runs and strikeouts have increased. The careless or clueless reader might note that this is curious, for from the ... [Read more...]

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Really pleased with how our webinar today, Supercharge BI and Dashboards with Predictive Analytics, turned out. Steve Miller from OpenBI gave a great introduction to the motivations and need for predictive analytics. Andrew Lampitt from Jaspersoft was next up, with an overview of the Jaspersoft system for BI reports and ... [Read more...]

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I previously posted a set of links to online videos on R. I organised videos into three categories: (1) what is R; (2) how to do basic data analysis in R; and (3) how to use intermediate and advanced tools in R. Since writing the post I've discovered ... [Read more...]

[This article was first published on Rmetrics blogs, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your [Read more...]

[This article was first published on Rmetrics blogs, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your [Read more...]