JSM Preliminary Online Program
This is the preliminary program for the 2007 Joint Statistical Meetings in Salt Lake City, Utah.

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Activity Number: 69
Type: Contributed
Date/Time: Sunday, July 29, 2007 : 4:00 PM to 5:50 PM
Sponsor: Section on Statistics in Sports
Abstract - #309755
Title: Bivariate Score Plots
Author(s): Rafe Donahue*+ and Tatsuki Koyama and Jeff Horner and Cole Beck
Companies: Vanderbilt University and Vanderbilt University and Vanderbilt University and Vanderbilt University
Address: Medical Center, Nashville, TN, 37232,
Keywords: baseball ; scatterplot
Abstract:

Scores from baseball games are bivariate data, with each variate being one team's score. Information can be obtained from viewing the distribution of baseball scores from a bivariate point of view. We offer a baseball scores plot, with each game being a point in a two-dimensional grid, and an algorithm, database, and website to allow interested users access to the plot. Using data from www.retrosheet.org, the site allows users to select Major League teams for the 1871-2006 seasons; plotted are the results from the games. We allow color-conditioning of the plot. Anomalies such as Roger Clemens' hideous lack of run support in 2005, the Pirates' dismal record in one-run games before the break in 2006 and subsequent improvement in the latter half of that year, and oddities such as tie games become evident. Rationale behind the plot techniques and website use will be discussed.


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Revised September, 2007