I have to admit that working with my Major League Soccer data set has been slow going. There are a few reasons: (1) I have a full-time job at the National Renewable Energy Lab and (2) the data isn’t quite … Continue reading →
Monthly Archives: August 2010
A Rule Change in Major League Soccer?
GRASS Can Make Pretty Maps
I have posted a couple examples in the past on the topic of high quality map production from GRASS GIS-- usually via the Generic Mapping Tools. I am not sure why, but I have previously avoided using the traditional cartographic output module that is bu...
What’s for lunch? Private browsing.
Over at the Mozilla Metrics blog, Mozillan Hamilton Ulmer uses R and ggplot2 to look at when people (or at least, Firefox users that volunteered to share their usage data) enable private browsing. Turns out it isn't just "porn mode" after all: the main use turns out to be lunchtime browsing away from the employer's prying eyes: Follow the...
Tips for the R beginner (a 5 page overview)
In this post I publish a PDF document titled “A collection of tips for R in Finance”. It is a basic 5 page introduction to R in finances by Arnaud Amsellem (linked in profile). The article offers tips related to the following points: Code Editor Organizing R code Update packages Getting external data into R Communicating with external applications...
Taking R to the Limit: Parallelism and Big Data
In a two-part series at the Los Angeles R User Group, Ryan Rosario took a look at the many ways you can take the R language to the limits of high-performance computing. In Part I (see video at this link; slides and code also available), Ryan focuses on the various methods of parallel computing in R. There's some great...
Leveraging the Wisdom of Crowds for Fantasy Football
WARNING: This has nothing to do with national security, but is nonetheless awesome.
This evening I will be participating in that great annual tradition which marks the transition from Summer to Fall: the fantasy football draft.
A large part of having a successful fantasy football draft is being able to adjudicate the value of a player more accurately
TripleR round-up
GSoC 2010 is over – here’s the harvest from my project: TripleR 0.4.3 is the current stable version – and it is a major milestone in its development. Now for the first time social relations round robin designs can be analyzed in R. All results have been cross-checked with TripleR’s DOS predecessor SOREMO.exe, and all 
Tools for Hacking R: Subversion
The development version of R is stored in a Subversion repository at the URL http://svn.r-project.org/R/trunk/. In fact, you can browse the source code by clicking the link. Subversion Hierarchy Subversion is software for source code revision control. That means it keeps track of changes, who made them, when they were made, and any comments about
Abstract word clouds using R
A recent question over at BioStar asked whether abstracts returned from a PubMed search could easily be visualised as “word clouds”, using Wordle. This got me thinking about ways to solve the problem using R. Here’s my first attempt, which demonstrates some functions from the RCurl and XML packages. update: corrected a couple of copy/paste 
A small and lonely sea urchin…
A few weeks ago, a paper on which I am a co-author was accepted for publication in the french ecological journal Life & Environment. In this paper, we evaluate the consequences of recreative harvesting on three populations of sea urchins (…)
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
