ELOSTAT 0.1  (32-bit version) Copyright Rob Weir, 1996
CompuServe: 71165,2722
Internet: rweir@cybercom.net

ELOSTAT is a WIN32 program, so you must be running Windows 95 or NT to use it!
It also requires MSVCRT40.DLL, so be sure to download that also!

This program is free for personal use.
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Files you now have:

ELOSTAT.TXT   the file you are reading
ELOSTAT.EXE   the ecostat program
SAMPLE.ELO    sample ouput file
ELO.GIF       graph of sample results

The program ELOSTAT calculates statistics from games in a ChessBase
file.  The output table shows a the pecentage of wins, draws, and loses
as a function of rating difference (white-black).

For example, a report might look like this:

Delta  Win%   Draw%  Lose% Score% Theory% Games
===============================================
-400,  12.0,   8.0,  80.0,  16.0,   9.1,  25
-395,   5.0,  20.0,  75.0,  15.0,   9.3,  20
.
.
.
 -10,  30.6,  47.4,  22.0,  54.3,  48.6,  1592
  -5,  32.2,  44.9,  22.9,  54.6,  49.3,  1609
   0,  36.4,  38.2,  25.3,  55.6,  50.0,  2267
   5,  34.7,  44.5,  20.7,  57.0,  50.7,  1558
  10,  31.8,  47.4,  20.8,  55.5,  51.4,  1563
.
.
.
 395,  87.0,   8.7,   4.3,  91.3,  90.7,  23
 400,  85.2,   3.7,  11.1,  87.0,  90.9,  27


The columns are:

Delta   = difference in rating (white-black)
Win%    = percentage of games won by white with that Delta
Draw%   = percentage of games drawn by white with that Delta
Lose%   = percentage of games lost by white with that Delta
Score% 	= Win% + Draw%/2
Theory%	= The score predicted by Elo's formula 1-(1/(10^(delta/400)+1))
Games   = number of games with this that Delta



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Elostat is easy to run.  You just pass in the name of a ChessBase file
as an argument and let it run.

For example, if you have a ChessBase file of World Championship games
called WCH.CBI and WCH.CBF, you run ecostat like this:

ELOSTAT WCH.CBF

or if you want to redirect the output to a text file

ELOSTAT WCH.CBF >WCH.ELO


Also, you can run ecostat on many CBF files at once using DOS wildcards,
such as:

ELOSTAT C:\CBDATA\*.CBF >BIG.ELO

The file SAMPLE.ELO shows the results when run on several files totaling
almost 100,000 rated games!


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