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In case you missed them, here are some articles from October of particular interest to R users. R hits a new milestone with 6,000 CRAN packages, and R 3.1.2 released. Revolution Analytics announces Revolution R Open, a supported and enhanced downstream distribution of R. (Learn more at the webinar on Wednesday November 12.) ... [Read more...]

For the 2015 NBA season, the only exciting Lakers news is the return of the Kobe show and Charles Barkley’s Lakers Lent.The Lakers started the season with 0 wins and 5 losses, amazingly bad. The round mound of rebound started Lakers Lent, fasting until the Lakers won. This week, Chuck finally ... [Read more...]

See this page. We're not done with them all but chapter 3 and 4 are there and the regression chapters are not too far behind. The Rnw files (using knitr LaTeX) are there along with the corresponding pdf files. You may have better solutions than ... [Read more...]

The Program of AusDM 2014 Conference is now available at http://ausdm14.ausdm.org/program. It features two keynote talks, one on Learning in Sequential Decision Problems by Prof Peter Bartlett from UC Berkeley, and the other on Making Sense of a Random World through … Continue reading → [Read more...]

I have worked on big data in my work with QuBit in London. In my research I increasingly find the tools I learnt there to be extremely useful. The keywords are smart data management for big data, such as hadoop and hive for querying just the right set of data ... [Read more...]

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Following on from my recent experience with deleting files using R, I found myself needing to copy a large number of raster files from a folder on my computer to a USB drive so that I could post them to … Continue reading → [Read more...]

Sorry for the blogging break. I’ve got a few planned for the next few weeks based on some work I’ve been doing. In the meantime, you should check out “Do we Need Hundreds of Classifiers to Solve Real World Classification Problems?” by Manuel Fernandez-Delgado at JMLR. They took ... [Read more...]

by Matt Sundquist Plotly, co-founder Plotly is a platform for data analysis, graphing, and collaboration. You can use ggplot2, Plotly's R API, and Plotly's web app to make and share interactive plots. Now, you can you can also make 3D plots. Immediately below are a few examples of 3D plots. ... [Read more...]

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in 2012, more than one quarter of the united states population lived in the jurisdiction of a police department that submitted details about every crime to a central repository maintained by the fbi.  a production of the uniform crime reports (ucr) program, the national incident-based reporting system (nibrs) compiles statistics from ... [Read more...]

I would be delighted to co write a post (Andrew Wyer) One of the best things about writing a blog is that occasionally you get to know very interesting people. Last October 13th I published this post about the harmonograph, a machine driven by pendulums which creates amazing curves. Two ... [Read more...]

In this short post, I benchmark different “versions” of R. I compare the execution speeds of R, R linked against OpenBLAS, R linked against ATLAS and Revolution R Open. Revolution R Open is a new open source version of R made by Revolution Analytics. It is linked against MKL and ... [Read more...]

Cross-posted from the Software Carpentry Blog. For the past two years I’ve run the UC Davis R Users’ Group (D-RUG). In this post, I’ll (1) outline the structure of D-RUG, and (2) summarize some lessons learned, and (3) discuss how such users’ groups could act to support and complement SWC’s ... [Read more...]

If you have ever worked with US government data or other large datasets, it is likely you have faced fixed-width format data. This format has no delimiters in it; the data look like strings of characters. A separate format file defines which columns of data represent which variables. It seems ... [Read more...]

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Rcpp11 3.1.2.0 was released to CRAN, as the ultimate C++11 companion to R 3.1.2 on which it depends. The NEWS extract follows:

# Rcpp11 3.1.2

* New `wrap` implementation for `std::tuple<Args...>` (#195)

* `colnames` and `rownames` setters for matrices (#210). 

* Most sugar functions are now processing the expression in parallel. 

* Forbidden symbols from the C/R API are no longer directly used, so packages can use Rcpp11 without getting the NOTE as before.

This release marks departure from compromision. Rcpp11 used to compromise on the meaning of C++11 to satisfy platforms for which the available tooling was laging behind, most notoriously windows ... [Read more...]

Changes Version 1.4.1 of RSiteCatalyst is now available on CRAN. There were a handful of bug fixes and new features added, including: Fixed bug in QueueRanked function where only 10 results were returned when requesting multiple element reports. Function now returns up to 50,000 per breakdown (API limit) Created better error message to ... [Read more...]

We recently shared some benchmarks for Revolution R Open on the Windows platform, which showed significant improvements compared to R downloaded from CRAN. Those performance gains mainly come from multi-threading: Revolution R Open is linked to the Intel Math Kernel Library, which uses all available cores (rather than just one ... [Read more...]