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Function of the day

Construct the path to a file from components in a platform-independent way.

Package of the day

This package implements a data structure similar to hashes in Perl and dictionaries in Python but with a purposefully R flavor. For objects of appreciable size, access using hashes outperforms native named lists and vectors.

Question of the day

On general request, a community wiki on producing latex tables in R. In this post I'll give an overview of the most commonly used packages and blogs with code for producing latex tables from less straight-forward objects. Please feel free to add any I missed, and/or give tips, hints and little tricks on how to produce nicely formatted latex tables with R.

Recent blog posts

21 hours 10 min ago
Sorry about the blog being inaccessible for a few days. Our hosting provider TypePad was the victim of a denial of service attack. (The Revolution Analytics main website and systems weren't affected.) But everything seems to be back to normal now, so it should be business as usual from here on in.
22 hours 20 min ago
by Thomas Dinsmore Regular readers of this blog may be familiar with our ongoing effort to benchmark Revolution R Enterprise (RRE) across a range of use cases and on different platforms.  We take these benchmarks seriously at Revolution Analytics, and constantly seek to improve the performance of our software. 
1 day 14 hours ago
Norm Matloff points us to a pithy example that sums up Simpson's Paradox perfectly, captured in the title of a medical paper: "Good for Women, Good for Men, Bad for People". He explains how Simpson's Paradox isn't a paradox at all, but just the consequence of including a minor variable in a model ahead of a more significant variable, and illustrates this with an R analysis of the UCB admissions data.

Featured How To

The following list of data sources has been modified as of 3/18/14. Most of the data sets listed below are free, however, some are not.