December 2011

AGU Fall Meeting Day 2

December 8, 2011 | Gavin L. Simpson

One of the problems of trying to blog a conference when you are going to session talks and socialising in the evening is keeping up to date with your blogging. Day 2 was a little slower in regard to talks and I was able to pick to some degree. [Read more...]

Rcpp talk at Seattle RUG

December 7, 2011 | Thinking inside the box

Thanks to Zach and the Seattle R User Group for the invitation. Earlier this evening I gave a talk about R, C++ and our Rcpp package, focussing on the why, how, what, who, and "one more thing" higher-level aspects of extending R. This was supposed to... [Read more...]

Plotting BeijingAir Data

December 7, 2011 | rdpeng

Here’s a bit of R code for scraping the BejingAir Twitter feed and plotting the hourly PM2.5 values for the past 24 hours. The script defaults to the past 24 hours but you can modify that by simply changing the value for the variable ‘n’.  You c... [Read more...]

RcppArmadillo 0.2.33

December 7, 2011 | Thinking inside the box

Conrad Sanderson made a first 2.4.1 bug fix release of Armadillo. We now have RcppArmadillo release 0.2.33 on CRAN which contains it. earlier today. The NEWS entry below summarises the changes. 0.2.33 2011-12-07 o Upgraded to Armadillo re... [Read more...]

Martyn Plummer’s Secret JAGS Blog

December 7, 2011 | Bob Carpenter

Martyn Plummer, the creator of the open-source, C++, graphical-model compiler JAGS (aka “Just Another Gibbs Sampler”), runs a forum on the JAGS site that has a very similar feel to the mail-bag posts on this blog. Martyn answers general statistical computing questions (e.g., why slice sampling rather than Metropolis-Hastings?) ... [Read more...]

Subscriptions Feature Added

December 7, 2011 | bryan

You can now subscribe to almost any content on the ProgrammingR website, including the job listings. By subscribing, you will receive email updates when new jobs are listed or when other content types you are following are posted or updated. To subscri... [Read more...]

A pre-requisite to be a Data Scientist

December 7, 2011 | Ram

So what should be in the toolkit of people who call themselves a data scientist?A fundamental skill is the ability to manipulate data. A data scientist should be familiar and comfortable with a number of platforms and scripting tools to get the job don... [Read more...]

A Spatial Data Analysis GUI for R

December 7, 2011 | Ian

I am excited to announce the addition of DeducerSpatial to the Deducer plug-in ecosystem. DeducerSpatial is a graphical user interface for the visualization and analysis of spatial data, built on Deducer's plug-in platform. In a previous post I illustrated how to user DeducerSpatial from the command line to add Open ... [Read more...]

Installing Rcpp on Windows 7 for R and C++ integration

December 7, 2011 | Tony Breyal

Introduction Romain Francois presented an Rcpp solution on his blog to an old r-wiki optimisation challenge which I had also presented R solutions for previously on my blog. The Rcpp package provides a method for integrating R and C++. This allows for faster execution of an R project by recoding ... [Read more...]

New CRAN mirror from Revolution Analytics

December 7, 2011 | David Smith

There's a new CRAN mirror available: cran.revolutionanalytics.com. It's provided by Revolution Analytics and hosted at Rackspace's high-availability data center in Dallas, TX. Especially for R users located in the western US, using this mirror will provide high-bandwidth access to open-source R downloads and CRAN packages while taking the ... [Read more...]

A Word Cloud with Spatial Meaning

December 7, 2011 | Kay Cichini

..Some time ago I did a word cloud for representing a Google Scholar search result. Tal Galili pointed me at a post by Drew Conway that expanded on the topic of word clouds lacking spatial meaning. In fact the spatial ordering of words in a word cloud ...
[Read more...]

UseR! 2011 slides are now available

December 7, 2011 | Petr Simecek

I have just realized that UseR! 2011 presentation slides are now available from the conference web site.Unfortunately, no big surprise this year. Or maybe this is good news as it means that I have all the important stuff in my RSS Reader. And by the way, this blog is now ... [Read more...]

R is not C

December 7, 2011 | nmv

I keep trying to write R code like it was C code. It is a habit I’m trying to break myself of. For example, the other day I need to construct a model matrix of 1′s and 0′s in the … Continue reading → [Read more...]
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