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Subject: Re: ELO variance

Author: Dann Corbit

Date: 17:48:49 05/25/04

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On May 25, 2004 at 15:49:22, Bas Hamstra wrote:

>Supposed you played a huge automated tournament, and ratings were automatically
>calculated (like in Arena) and displayed for all participants. Then, would it be
>possible to derive/calculate the sigma, 2*sigma, 3*sigma rating
>rating-intervals? If so how?

Calculate all sorts of summary statistics (including variance and stddev):
ftp://cap.connx.com/pub/tournament_software/STATS.HPP

The stats.hpp template uses this for accurate summations:
ftp://cap.connx.com/pub/tournament_software/Kahan.Hpp



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