January 2015

One of My Favorite R Oddities: dump()

January 26, 2015 | wrathematics

R is full of things that make "real programmers" (I dislike this term) turn their noses up in disgust. One of my favorites is the dump() function. It is...odd. I think the best way to introduce it to people is without context, because it's just so bizarre: That's right; ... [Read more...]

stringdist 0.9: exercise all your cores

January 26, 2015 | mark

The latest release of the stringdist package for approximate text matching has two performance-enhancing novelties. First of all, encoding conversion got a lot faster since this is now done from C rather than from R. Secondly, stringdist now employs multithreading … Continue reading → [Read more...]

Comparing the contribution of NBA draft picks

January 25, 2015 | tlfvincent

When it comes to the NBA draft, experts tend to argue about a number of things: at which position will a player be selected? what is the best draft class ever? etc… Luckily, the wealth of data made available by the great people of http://www.basketball-reference.com/draft/ make ...
[Read more...]

World Ocean Atlas changes

January 25, 2015 | Dan Kelley Blog/R

Introduction The ocedata R package has a dataset named levitus, which stores sea-surface temperature and salinity. Today, the development version of ocedata (available at github) was updated from the 2009 version of this atlas to the 2013 version. Differences between the two datasets are illustrated here. Methods The code provided below requires ... [Read more...]

RcppArmadillo 0.4.600.4.0

January 25, 2015 | Thinking inside the box

Conrad put up a maintenance release 4.600.4 of Armadillo a few days ago. As in the past, we tested this with number of pre-releases and test builds against the now over one hundred CRAN dependents of our RcppArmadillo package. The tests passed fine as usual, and results are as always in ... [Read more...]

Tokyo-based R Meetup TokyoR #45

January 25, 2015 | Takekatsu Hiramura

Last week, I attended a Tokyo-based Statistical Software R meetup named “TokyoR #45” held on Jan 17 at VOYAGE GROUP office in Shibuya, Tokyo. Almost all presentations were given in Japanese, but in this post I’ll share brief a summary…Read more ›
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Odds, odds ratio, language and intuition

January 25, 2015 | Wingfeet

I was reading a statistics book the other day. I am at the beginning. In this section I read '(we) report results as odds ratios, which is more intuitive'. I must have read sentences stating this any number of times. But I don't agree.It may be my back... [Read more...]

Rcpp 0.11.4

January 24, 2015 | Thinking inside the box

A new release 0.11.4 of Rcpp is now on the CRAN network for GNU R, and an updated Debian package will be uploaded in due course. Rcpp has become the most popular way of enhancing GNU R with C++ code. As of today, 323 packages on CRAN depend on Rcpp for making ... [Read more...]

RcppGSL 0.2.4

January 24, 2015 | Thinking inside the box

A new version of RcppGSL is now on CRAN. This package provides an interface from R to the GNU GSL using our Rcpp package. This follows on the heels on the recent RcppGSL 0.2.3 release and extends the excellent point made by Qiang Kou in a contributed... [Read more...]

RcppAnnoy 0.0.5

January 24, 2015 | Thinking inside the box

A new version of RcppAnnoy is now on CRAN. RcppAnnoy wraps the small, fast, and lightweight C++ template header library Annoy written by Erik Bernhardsson for use at Spotify. RcppAnnoy uses Rcpp Modules to offer the exact same functionality as the Py... [Read more...]

GPU Tutorial, with R Interfacing

January 24, 2015 | matloff

You’ve heard that graphics processing units — GPUs — can bring big increases in computational speed.  While GPUs cannot speed up work in every application, the fact is that in many cases it can indeed provide very rapid computation.  In this tutorial, we’ll see how this is done, both in ... [Read more...]

RSS feeds for statistics and related journals

January 23, 2015 | Rob J Hyndman

I’ve now resurrected the collection of research journals that I follow, and set it up as a shared collection in feedly. So anyone can easily subscribe to all of the same journals, or select a subset of them, to follow on feedly. There are about 90 journals on the list, ... [Read more...]

R Open Source and Commercial Support

January 23, 2015 | C

With today's announcement that Microsoft will acquire Revolution Analytics, it is worthwhile to consider the commercial support that has existed in different forms throughout the history of this open source language. R was based on S, which w... [Read more...]
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