Defensive Average

This directory contains the defensive average data for all players who played
75 or more games at a position in a given year (1988 to 1991).  The files are
formatted for >80 columns due to the amount of data contained.  Therefore,
these files may seem odd to someone viewing hem on an 80 column screen.  Not
to worry; the columns are all right.  Also, these files are stored with a .Z
suffix - when you retrieve the files, be sure to type "uncompress da*" before
you view them.

Defensive Average is a revised attempt to measure the defensive range and
ability of fielders by measuring defensive range as a percentage of ground
balls in a certain "zone" turned into outs.  The abbreviations used in the files
follow at the end of this readme file.

PSFD.gif is a GIF file, 1600x1226x2, that shows the fielding diagram used by
 Project Scoresheet in determining this data.
PSFDsmall.gif is a similar GIF file, 800x613x2, for those whose machines have
 problems handling the larger file.
PSFD.readme is a textfile that lists the zones for which each fielder is 
 responsible for any given batted ball.  Obviously, this file is meant to be
 used in conjuntion with PSFD.gif.

A great many thanks to Sherri Nichols, who originally posted these files in
rec.sport.baseball and has allowed them to be filed in this archive site for
everyone to read.

Questions about the archives should be directed to kbos@carina.unm.edu. 

Headings used in the DA postings:

G - games
GOps - ground ball opportunities
AGOps - opps adjusted for unlocated balls
GO - ground ball outs
AGDA - GO/AGOps, the "defensive average"
FE - fielding errors
TE - throwing errors
1B - singles allowed through the zone
2B - doubles
AGO/2B, 3B, AGO/3B - obvious
DPOps - number of double play opps, defined as ground ball, runner on at
        least first, less than two out
DPI - number of double plays initiated by that player
DP% - DPI/DPOps
FOps, AFOps, FO, AFDA - fly ball stats (otherwise same as ground ball stats)