A new release of the stringi package is available on CRAN (please wait a few days for Windows and OS X binary builds). # install.packages("stringi") or update.packages() library("stringi") stringi is an R package providing (but definitely not limiting to) equivalents…Read more › [Read more...]

by Joseph Rickert I recently had the opportunity to look at the data used for the 2009 KDD Cup competition. There are actually two sets of files that are still available from this competition. The "large" file is a series of five .csv files that when concatenated form a data set ... [Read more...]

Today we are announcing that we are open sourcing the two systems at the heart of our business: SmartDataCenter and the Manta object storage platform. SmartDataCenter is the container-based orchestration software that runs the Joyent public cloud; we have used it for the better half of a decade to… [Read more...]

When I start an R class, one of my opening lines is nea […] [Read more...]

Gviz is a really great package for visualising genomics data in R. Recently I have been looking at stranded RNA-seq data, which provides the ability to differentiate sense and antisense expression from a genomic locus thanks to the way in … Continue reading → [Read more...]

I was pleasantly surprised when somebody shared my traveling salesman animation to reddit and the post made it all the way to reddit's default front page (i.e. the top 25). The gif racked up over 1.3 million pageviews on Imgur, a testament to reddit's traffic-generating prowess. Before the post made it ... [Read more...]

A few days ago, I published a post entitled extracting datasets from excel files in a zipped folder, because I wanted to use datasets that were online, in some (zipped) excel format. The first difficult part was the folder with a non-standard character (the French é). Because next week I should ... [Read more...]

On Friday October 31, 2014, and Saturday November 1, 2014, around thirty-five graduate students and faculty members attended a Software Carpentry workshop. Attendees came primarily from the Economics department and the Kellogg School of Management, w... [Read more...]

A minor bugfix release 0.1.1 of the RPushbullet package (interfacing the neat Pushbullet service) landed on CRAN yesterday morning. It cleans up a small issue related to the ability to transfer files between devices via the Pushbullet service where the ability to select a (non-default) target device has now been restored. ... [Read more...]

2006–2014 using FRBData 2006–2014 using FRBData packageTreasury yield curve from the Volcker era through Greenspan, Bernanke, and Yellen. require(YieldCurve) data(FedYieldCurve) maturities I can’t upload a larger view, but just run that code with a bigger width & height, you might get a ~10MB gif. I shrank it further with gifsicle. ... [Read more...]

Travis-CI to Github Pages I don't remember how I got on this, but I believe I had a recent twitter exchange with some persons (or saw it fly by) about pushing R package vignettes to the web after building and checking on travis-ci. Hadley Wickham pointed to using such a ... [Read more...]

[Read more...]

Net Promoter believes that customers come in one of three forms: promoters (happy yellows), passives (neutral grays), or detractors (angry reds). Cluster identification is relatively easy for all you need to do is ask the "ultimate question" concerning... [Read more...]

Last week I released a new package called settings. It grew out of my frustration built up during several small projects where I'm generating heavily parameterized d3/js output. What I wanted was support to define a whole bunch of option … Continue reading → [Read more...]

In a recent post I discussed some aspects of the distributions of some common test statistics when the null hypothesis that's being tested is actually false. One of the things that we saw there was that in many cases these distributions are "non-central", with a non-centrality parameter that increases as ... [Read more...]

In a recent post I discussed some aspects of the distributions of some common test statistics when the null hypothesis that's being tested is actually false. One of the things that we saw there was that in many cases these distributions are "non-central", with a non-centrality parameter that increases as ... [Read more...]

[Read more...]

by Bill Jacobs Revolution R Enterprise is the industry's first R-based analytics platform that supports a variety of parallel, grid and clustered systems such as Hadoop, Teradata database and Platform LSF Linux grids. Last year, we enhanced Revolution R Enterprise (RRE) to support big data systems, with support for Hadoop. ... [Read more...]

Given the recent selloff in the Yen, I thought now would be a good time to update my favorite chart from Intended or Unintended Consequences. For a true currency death spiral, rates need to move up rather than down.  It appears we are long way from t... [Read more...]

Why R? Because S! R is the open source implementation (and a pun!) of S, a language for statistical computing that was developed at Bell Labs in the late 1970s. After that, the implementation of S underwent a number of major revisions documented in a series of seminal books, often ... [Read more...]