When JP Morgan Chase announced it had lost more than 2 billion dollars on the capital markets back in May 2012, many pointed to the actions of rogue trader Bruno Iksil as the cause. But was the "London Whale" — the nickname he was given by other traders for his outsized positions — the victim not of hubris, but...
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analyze health professional shortage areas (hpsa) with r
a health professional shortage area (hpsa) is a geographic area, population group, or health care facility that has been designated by the united states government as having an insufficient supply of medical providers, based on certain provider-to-popu...
Make building R packages easier with devtools
If you're writing any significant amount of R code, you might want to start think about bundling it up into packages. An R package combines functions, data, documentation and unit tests, and is a convenient and reliable system to manage and version collections of R content that could otherwise become unwieldy. And if you want to share your code...
Generating Labels for Supervised Text Classification using CAT and R
The explosion in the availability of text has opened new opportunities to exploit text as data for research. As Justin Grimmer and Brandon Stewart discuss in the above paper, there are a number of approaches to reducing human text to … Continue reading →
XLConnect 0.2-4
Mirai Solutions GmbH (http://www.mirai-solutions.com) is very pleased to announce the release of XLConnect 0.2-4, which is available from CRAN. This newest release comes along with a number of new features: Ability to read cached cell values. There is a new … Continue reading →
General Navigation in R
So you’ve finally managed to install the pesky environment but have no idea what you are looking at when you open the program. This tutorial is for you. (Again, here is a version with screenshot pictures). When you open R, it might look different than the screenshots in the picture version of the tutorial. This 
Robot Localization in R
The excellent “Artificial Intelligence for Robotics” class on Udacity starts with a Python example on teaching a robot to determine where it is, given sensor data. Assuming the robot starts with a map of the world, and can make some observations of it’s surroundings, a series of movements and successive observations can quickly narrow the
Applying Tradeblotter’s Nice Work Across Manager Rather than Time
Ever since I saw the very helpful distribution page first presented in Download and parse EDHEC hedge fund indexes, I have used it liberally. Now that it is has been functionalized (Visually Comparing Return Distributions), I thought I would amen...
Getting Started with F1 Betting Data
As part of my “learn about Formula One Stats” journey, one of the things I wanted to explore was how F1 betting odds change over the course of a race weekend, along with how well they predict race weekend outcomes. Courtesy of @flutterF1, I managed to get a peek of some betting data from one 
[R-bloggers]RcmdrPlugin.KMggplot2_0.2-0 is on CRAN now
![[R-bloggers]RcmdrPlugin.KMggplot2_0.2-0 is on CRAN now](http://cdn-ak.f.st-hatena.com/images/fotolife/t/triadsou/20130124/20130124110741.png)
I posted a new version of the ”RcmdrPlugin.KMggplot2” package, which is an Rcmdr plug-in for a ”ggplot2” GUI front-end. This package assists you to make ”ggplot2” graphics. RcmdrPlugin.KMggplot2 (CRAN) NEWS Changes in version 0.2-0 (2013-01-23) Added the
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
