Fangraphs recently published an interesting dataset that measures defensive efficiency of fielders. For each player, the Inside Edge dataset breaks their opportunities to make plays into five categories, ranging from almost impossible to routine. It al...
Norm Matloff points us to a pithy example that sums up Simpson's Paradox perfectly, captured in the title of a medical paper: "Good for Women, Good for Men, Bad...
We are happy to announce the availability of v1.1 of RStudio Shiny Server Pro, our commercial server for deploying Shiny applications. In this release we took your feedback and...
This is the bimonthly R Jobs post (for 2014-04-22), based on the R-bloggers’ sister website: R-users.com. If you are an employer who is looking to hire people from the R community,...
A new update of my sjPlot package was just released on CRAN. This release focused on improving existing functions and bug fixes again. Especially the table output functions (see...
This project was inspired by "Where is the R Activity?" and our follow-up post on the number of useR! 2013 attendees. But instead of static maps, now we gathered...
I have added a demo file to the latest version of the fanplot package. It has lots of examples of different plotting styles to represent uncertainty in time series...
One of the goals of the rOpenSci is to facilitate interoperability between different data sources around web with our tools. We can achieve this by providing functionality within...
Have you ever thought of borrowing some money? A common case is when you have to borrow money for buying a house, which is called a mortgage. Wikipedia ('Mortgage...
Last week I published an R script to interface with Gitbook. I received some positive feedback and decided to include all the code in an R package....
Last Thursday I had the pleasure to attend the Tokyo R user group meeting. And what a fun meeting it was! Over 40 R users had come together in...
The latest issue of the American Statistician has a set of thought-provoking point/counterpoint papers on Simpson’s Paradox, with a tie-in to the controversial issue of causality. (I will not...
There are several other blogs on forecasting that readers might be interested in. Here are seven worth following: No Hesitations by Francis Diebold (Professor of Economics, University of Pennsylvania). Diebold...
Fama and French changed the financial world with their factors in 1993. Another duo Andrea Frazzini and Lasse Heje Pedersen have expanded our world with their Betting Against Beta...
Okay okay. The joke is up. Besides likely necessitating an emergency call to from the Stata Management Team to the Stata Legal Team, my post on April 1st of...
Starting last summer I worked on a short project that set out to estimate the potential costs of externalities due to unconventional shale gas production in the Marcellus shale...
If you missed last week's webinar presented by Revolution Analytics' US Chief Scientist Mario Inchiosa, Decision Trees built in Hadoop plus more Big Data Analytics with Revolution R Enterprise,...
I created a small program called Singleton Remover CSV to help researchers process files quickly that might otherwise take a long time to be handled by hand. The program...
One of the first functions in the FSA package was lencat(), which served me well over the years. However, I have been bothered by the use of a formula...
DataCamp first to offer free interactive R tutorials via the OpenIntro platform. In one week, the ten-week Coursera course on Data Analysis and Statistical Inference by prof. Mine Çetinkaya-Rundel...
In this third post on Measles data I want to have a look at some high incidence occasions. As described before, the data is from Project Tycho,...
The MathWorks has an interesting demo on how the shape of a circus tent can be modeled as the solution of a quadratic program in MATLAB. In...
With the recent release of R-3.1.0, and the near-recent release of OpenBLAS 0.29rc2, it was time to recompile Rblas.dll and do some new speed tests. The test computer has...
After a few months of testing we present OpenCPU versions 1.3 and 1.4. These releases do not introduce any major changes in the...
For the previous article I needed a quick way to figure out if two sets of points are linearly separable. But for crying out loud I could not find a...
I've lost about 100 hours over the past week to the black hole of 2048. In an attempt to...
We are in the midst of what many are calling a "golden age" of the NBA. Being in the midst of a time where attention to the sport has...
We use R to take a very brief look at the distribution of e-book sales on Amazon.com. Recently Hugh Howey shared some eBook sales data spidered from Amazon.com: The...
The Mountain View Voice is a weekly newspaper serving the Silicon Valley area, and is a familiar sight to anyone wandering the streets of Palo Alto or Menlo Park....
Plotly: collaborative, publication-quality graphing. 
