Author: Dann Corbit
Date: 20:05:42 02/03/06
Go up one level in this thread
On February 03, 2006 at 22:53:56, Joseph Ciarrochi wrote: >bayeselo generates numbers that are quite different, in scale, from those >generated by elostat (e.g, cegt ratings). Is their anyway to make the scale the >same? Yes. There is a help system for that program: E:\programme\winboard>bayeselo version 0053, Copyright (C) 1997-2005 Remi Coulom. compiled Jan 26 2006 12:49:16. This program comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it under the terms and conditions of the GNU General Public License. See http://www.gnu.org/copyleft/gpl.html for details. ResultSet>? Syntax for command lines ~~~~~~~~~~~~~~~~~~~~~~~~ _command_ _parameters_ [< _input_] [>[>] _output_] [;_comment_] Universal commands ~~~~~~~~~~~~~~~~~~ x ............... close this console interface p ............... go to the parent interface children ........ list children interfaces child <n> ....... select a child interface echo <params> ... repeat <params> to the output stream ! [<command>] ... make a system call prompt [on|off] . show|hide the command prompt myself <n> ...... call recursively this interface <n> times ResultSet commands ~~~~~~~~~~~~~~~~~~ players ......... list players results ......... list game results pgn ............. write results in PGN format reset ........... reset results and players addplayer <pn> .. add one player with name <pn> addresult w b r . add result (w = white, b = black, r = result) r = 0 (b wins), 1 (draw), or 2 (w wins) readpgn <file>... read PGN file connect [p] [fr] remove players that are not connected to p elo ............. open Elo-estimation interface ResultSet>readpgn book.pgn 26085 game(s) loaded, 10 game(s) with unknown result ignored. ResultSet>elo ResultSet-EloRating>? Syntax for command lines ~~~~~~~~~~~~~~~~~~~~~~~~ _command_ _parameters_ [< _input_] [>[>] _output_] [;_comment_] Universal commands ~~~~~~~~~~~~~~~~~~ x ............... close this console interface p ............... go to the parent interface children ........ list children interfaces child <n> ....... select a child interface echo <params> ... repeat <params> to the output stream ! [<command>] ... make a system call prompt [on|off] . show|hide the command prompt myself <n> ...... call recursively this interface <n> times EloRating commands ~~~~~~~~~~~~~~~~~~ advantage [x] ... get[set] advantage of playing first drawelo [x] ..... get[set] draw Elo prior [x] ....... get[set] prior (= number of virtual draws) elo [p] [elo] ... get[set] Elo of player number p mm [a] [d] ...... compute maximum-likelihood Elos: a: flag to compute advantage (default = 0) d: flag to compute elodraw (default = 0) elostat ......... compute ratings with ELOstat algorithm ratings [min] ... list players with at least min games details ......... detailed list offset [elo] .... get[set] Elo offset scale ........... get[set] Elo scale p <w> <b> <r> ... probability of result <r> with Elos <w> and <b> likelihood ...... log-likelihood of the current Elo list prediction ...... open prediction interface plotres [i] [M] . plot result likelihoods as a function of rating diff: i: number of intervals (default = 21) M: maximum rating difference (default = 500) plotdraw [n] [d] plot draw frequency as a function of average rating n: number of games per group (default = 100) d: maximum rating difference (default = 100) confidence ...... get[set] level of confidence intervals variance ........ compute intervals with the diagonal of the Hessian covariance ...... compute intervals with the full Hessian los [f] [p] [w] . likelihood of superiority (f=first,p=players,w=width) minelo [x] ...... get[set] minimum Elo maxelo [x] ...... get[set] maximum Elo resolution [n] .. get[set] resolution jointdist [p] ... compute intervals from joint distribution exactdist [p] ... compute intervals assuming exact opponent Elos advdist ......... likelihood distribution of advantage drawdist ........ likelihood distribution of drawelo ResultSet-EloRating> >Also, has anybody done a comparison of the two rating systems (bayelo versus >elostat). Are their big differences? For the most part the differences can be ignored. It appears to me that BayesElo is probably more accurate for the extreme cases. But (for instance) if you take WBEC premier division and analyze with both systems, I guess that both will have the same ranking. So the differences are usually not important. You can do more with BayesElo, but it is a little more complicated.
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