February 2013

Revolution Newsletter: February 2013

February 25, 2013 | David Smith

The most recent edition of the Revolution Newsletter is out. The news section is below, and you can read the full February edition (with highlights from this blog and community events) online. You can subscribe to the Revolution Newsletter to get it monthly via email. Case study: Real-Time Marketing Analytics. ... [Read more...]

Reproducible research with R, Knitr, Pandoc and Word

February 25, 2013 | Rolf Fredheim

Add references and a style sheet Below I briefly outline why Pandoc is an essential part of my research workflow, and demonstrate how to seamlessly integrate it with a bibliographic system and code written in R to produce high quality word or pdf documents. I also include all the functions ... [Read more...]

Portfolio tests of predicted returns

February 25, 2013 | Pat

Exploring the quality of predictions using random portfolios and optimization. Previously “Simple tests of predicted returns” showed a few ways to look at expected returns at the asset level.  Here we move to the portfolio level. The previous post focused on correlation.  Win Vector Blog points out that gauging prediction ... [Read more...]

MLB runs allowed by team

February 24, 2013 | Martin Monkman

Or, How good were the Maddux/Glavine-era Braves?In this on-going series of posts about run scoring in Major League Baseball, for this installment I'll turn the equation around and look at runs allowed.  In order to account for the changing run scoring environments, the runs allowed by individual teams ... [Read more...]

R Bootcamp Materials!

February 24, 2013 | Jared Knowles

Learn about ColoRs in R!Analyze model results with custom functions.Good and Bad GraphicsTo train new employees at the Wisconsin Department of Public Instruction, I have developed a 2-3 day series of training modules on how to get work done in R. These... [Read more...]

Rcpp class in Sat 9 Mar in NYC

February 24, 2013 | andrew

Join Dirk Eddelbuettel for six hours of detailed and hands-on instructions and discussions around Rcpp, RInside, RcppArmadillo, RcppGSL and other packages . . . Rcpp has become the most widely-used language extension for R. Currently deployed by 103 CRAN packages and a further 10 BioConductor packages, it permits users and developers to pass “whole R [...] ... [Read more...]

the BUGS Book [guest post]

February 24, 2013 | xi'an

(My colleague Jean-Louis Fouley, now at I3M, Montpellier, kindly agreed to write a review on the BUGS book for CHANCE. Here is the review, en avant-première! Watch out, it is fairly long and exhaustive! References will be available in the published version. The additions of book covers with ... [Read more...]

Dynamic community occupancy modeling with R and JAGS

February 24, 2013 | Maxwell B. Joseph

This post is intended to provide a simple example of how to construct and make inferences on a multi-species multi-year occupancy model using R, JAGS, and the ‘rjags’ package. This is not intended to be a standalone tutorial on dynamic community occupancy modeling. Useful primary literature references include MacKenzie et ... [Read more...]

Workflow w/ reports package

February 24, 2013 | tylerrinker

NOTE: THIS IS NOW A PACKAGE SEE THIS LINK FOR DETAILS Let me start with a video for people who just want to see what I’m demo-ing first: I’ve been interested in speeding up workflow lately and spending a lot … Continue reading → [Read more...]

Simple Count Probability

February 24, 2013 | Kevin Davenport

Data can take the form of counts: Compliments or complaints received Items returned Number of E. coli cases Data can also be expressed in rates: Percent of web traffic from a user permissions type Percent of businesses in a region passing a safety audit A random variable X has the ... [Read more...]

Copying Data from Excel to R and Back

February 24, 2013 | Andrew Landgraf

A lot of times we are given a data set in Excel format and we want to run a quick analysis using R's functionality to look at advanced statistics or make better visualizations. There are packages for importing/exporting data from/to Excel, but I have f... [Read more...]

Large correlation in parallel

February 24, 2013 | David Ruau

A little improvement to the bigcor function proposed on Rmazing to compute huge correlation matrix in R, I made the function work in parallel using all the CPU cores available on the machine. The code is here.Here is a benchmark of the 2 func...
[Read more...]

Earthquakes in Netherlands

February 24, 2013 | Wingfeet

In the Netherlands we have Natural Gas. Unfortunately winning this gas seems to cause some quakes. As quakes go, they are not strong. However, our buildings are not made to resist quakes, before 1986 they were unheard of, so there is some damage. It is now predicted they could get stronger ... [Read more...]

Multi-species dynamic occupancy model with R and JAGS

February 24, 2013 | Maxwell B. Joseph

This post is intended to provide a simple example of how to construct and make inferences on a multi-species multi-year occupancy model using R, JAGS, and the ‘rjags’ package. This is not intended to be a standalone tutorial on dynamic community occupancy modeling. Useful primary literature references include MacKenzie et ... [Read more...]
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