In my simulation classes, we talk about how to generate random numbers. One of the techniques we talk about is the Linear Congruential Generator (LCG). Starting with a seed, the LCG produces
The R Project has once again been selected as a mentoring organization for this year's Google Summer of Code (GSoC). If you're not familiar with...
The next Cologne R user group meeting is scheduled for this Friday, 6 March 2014 and we have an exciting agenda with two talks, followed...
We will start, in our Data Science course, to discuss classification techniques (in the context of supervised models). Consider the following case, with 10 points, and two classes (red...
For the newcomers; scheduleR is a framework to deploy/schedule R tasks, reports and Shiny apps. The tool has an integrated logging and notification system to ease the maintenance...
Computerworld's Sharon Machlis has done a great service for the R community — and R especially novices — by creating the on-line Beginner's Guide to R. You can read...
The APS Observer has just published a profile of JASP, a graphical user interface designed to make statistics easier. It includes Bayesian procedures by means of the R and...
Last night I spotted this tweet about the R package TSclust. Thank you Pablo and Jose for #TSclust - time series clustering package in #rstats ! http://t.co/GBQtQnQ8Lr— Pasha...
Despite believing we can treat anything we can represent in digital form as “data”, I’m still pretty flakey on understanding what sorts of analysis we can easily do with...
This is a guest post by Ben Ubah. The field of electric power systems engineering relies heavily on computer simulations for analysis because of its nature. These computer simulations aid...
Romeo, Juliet, balcony in silhouette, makin o’s with her cigarette, it’s juliet (Flapper Girl, The Lumineers) Two weeks ago I published this post for which designed two different visualizations. At the end,...
In collaboration with Garrett Grolemund, RStudio’s teaching specialist, DataCamp has developed a new interactive course to facilitate reproducible reporting of your R analyses. R Markdown enables you to generate...
This is the first post I’ve written in a while. I have been somewhat radio silent on social media, but I’m jumping back in. Now, I work with brain...
A few weeks ago we introduced the drat package. Its name stands for drat R Archive Template, and it helps with easy-to-create and easy-to-use repositories for R packages....
Since I drive quite a lot, I have some interest in getting the most km out every Euro spent on fuel. One thing to change is the fuel. The...
My R/Bioconductor package, DOSE, published in Bioinformatics. Summary: Disease ontology (DO) annotates human genes in the context of disease. DO is important annotation in translating molecular findings from high-throughput data...
PACKT marketing guys again contact me to review their new book Mastering Scientific Computing with R. The book 432 pages (including covers) book is consist of 10 chapters which...
This afternoon I stumbled across this one weird trick an undocumented part of the YAML headers that get processed when you click the ‘knit’ button in...
As a bit of weekend fun, I decided to briefly look into the #rstats twitter data that Stephen Turner collected and made available (thanks!). Essentially, this data set contains...
Increasingly I find that I have fallen into using not-really-R whilst playing around with Formula One stats data. Instead, I seem to be using a hybrid of SQL to...
Part I Part II H2O is an open source parallel processing engine for machine learning on Big Data. This prediction engine is designed by, h20, a Mountain View-based startup...
A new release of RcppEigen is now on CRAN and in Debian. It synchronizes the Eigen code with the 3.2.4 upstream release, and updates the RcppEigen.package.skeleton() package creation...
In my previous post, I discussed how to use OpenStreetMaps (and standard plotting functions of R) to visualize John Snow’s dataset. But it is also possible to use Google...
While I was working for a training on data visualization, I wanted to get a nice visual for John Snow’s cholera dataset. This dataset can actually be found in...
This meetup will be hosted by Google and we’ll have Peter Lipman and Pete Meyer...
The bell rings - time to go to practice. Jarnell Stokes heads over to the gym, changes, and starts warming up with his teammates. It's his Junior year in high school....
It’s a folk theorem I sometimes hear from colleagues and clients: that you must balance the class prevalence before training a classifier. Certainly, I believe that classification tends to...
In 1998 John M. Chambers (now a member of R-core) won the ACM Software System Award for the S Language, which (in the words of the committee) "forever altered...
A new Armadillo release 4.650.1 was released by Conrad a few days ago. Armadillo is a powerful and expressive C++ template library for linear algebra aiming towards...
Plotly: collaborative, publication-quality graphing.
