I just got this announcement from EMBL-EBI about an RNA-seq/ChIP-seq analysis hands-on course. Find the full details, schedule, and speaker list here.Title: Advanced RNA-Seq and Chip-Seq Data Analysis Course Date: May 1-4 2012 Venue: EMBL-EBI, Hinxton,... [Read more...]

corrplot 0.60 is on CRAN now, here are some example graphs: [Read more...]

“Statistics with R” is a great R graphics & stats website. It provides lots of R examples, covering many analytics topics. It is also available as a PDF document to download at the website, as well as the R codes. … Continue reading → [Read more...]

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...]

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...]

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...]

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...]

In a previous post we looked at error handling in R with the tryCatch() function and how this could be used to write Java style try-catch-finally blocks. This time we’ll look at what can be done with the try() function …   read mo... [Read more...]

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...]

The idea of modelling the time series of GNP, and other macroeconomic variables, data for US as a trend stationary (TS) process was brought into question by Nelson and Plosser in their groundbreaking research paper in 1982. Their re... [Read more...]

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...]

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...]

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...]

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...]

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...]

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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...]

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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...]

(This is a guest post based on Calver, Rob e-mail to the R-help mailing list) We are delighted to announce that our new series of books on R is up and running, with two [Read more...]