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 the planning, operation and management of the system. Computer simulations have been implemented using several scientific computing tools. However, I have not yet seen any implementations using R. This inspired my...
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...
A new release of the js package has made it’s way to CRAN. This version adds support for compiling Coffee Script....
This is to continue on the topic of using the melt/cast functions in reshape to convert between long and wide format of data frame. Here is the example I found...
Thanks to a nice post by Meghan Duffy on the Dynamic Ecology blog (How do you make figures?), we have some empirical evidence that many figures made in...
Anscombe’s quartet comprises four datasets that have nearly identical simple statistical properties, yet appear very different when graphed. Each dataset consists of eleven (x,y) points. They were
RStudio is excited to announce the general availability (GA) of shinyapps.io. Shinyapps.io is an easy to use, secure, and scalable hosted service already being used by thousands of professionals...
Aggregation splits data into subsets, computes summary statistics on each subset, and reports the results in a conveniently summarized form. The aggregate function is one of the most capable...
This post will demonstrate a downside to rankings-based strategies, particularly when using data of a questionable quality (which, unless one … Continue reading →
by Joseph Rickert Distcomp, a new R package available on GitHub from a group of Stanford researchers has the potential to significantly advance the practice of collaborative computing with...
“The amount of information available in the internet grows every day” thank you captain Obvious! by now even my grandma is aware of that!. Actually, the internet...
Plotly: collaborative, publication-quality graphing.
