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Using R to Analyze Baseball Games in “Real Time”

October 4, 2009 | erikr

In order to honor the last day of the 2009 MLB regular season (excepting the Twins/Tigers tiebreaker Tuesday night), I was reading a book that combines a few of my favorite thing: statistics, R, and baseball. The book, by Joseph Adler, is called Baseball Hacks, and I highly recommend it ... [Read more...]

Emacs Key Binding for eval-defun in lisp-mode

September 22, 2009 | erikr

When I use R in Emacs through the ESS package, C-c C-c in a .R buffer will send a “block” of code to the inferior R process for evaluation. This was added just a few years ago, but my fingers are now trained to use that key combination for evaluating ... [Read more...]

R Function of the Day: table

September 21, 2009 | erikr

The R Function of the Day series will focus on describing in plain language how certain R functions work, focusing on simple examples that you can apply to gain insight into your own data. Today, I will discuss the table function. What situation is table useful in? The table function ... [Read more...]

open-source campaign finance analysis with R and MySQL

June 18, 2009 | jjh

Introduction In Part 1 of this tutorial we introduced the fechell library by extracting all itemized contributions from individuals made to the Obama For America campaign in 2007 and 2008. In Part 2 of the tutorial we will summarize that data set by importing it into a MySQL database and aggregating contributions by week ...
[Read more...]

R and data

May 26, 2009 | erehweb

My fellow bloggers John and Scott have posted recently about the free statistical programming language R.  How does it compare to an expensive language like SAS? If you’ve done any statistical analysis, then you’ll know that getting and cleaning the data is a major step in any project.  ... [Read more...]

Rails, Scalability and Sexism

April 29, 2009 | Ed Borasky

It’s been a long time since I posted here, for a number of reasons: Change of focus from Ruby programming to Linux capacity planning, especially in the realm of I/O subsystems. You’ll find more about that at http://linuxcapacityplanning.com... [Read more...]
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