[Bug-gnubg] Re: Strange FIBS ratings

[Joern Thyssen]

On Fri, Sep 05, 2003 at 03:57:47PM -0300, Albert Silver wrote
> > > How can I be rated 1866 with the enormous error rate in match 2??
> And
> > > why is it so much better than the first match with a huge error rate
> as
> > > well?
> > 
> > The reason is that in the 2nd match your errors consisted mainly of
> cube
> > errors, which  have a  much smaller effect  on rating, which  depends
> on
> > move errors and  cube errors (not on the total  errors). The "Error
> rate
> > (per decision)" is a number which  is not well correlated with rating
> if
> > you make large cube errors.
> 
> Ok, I understand. Might it not be a good idea, presuming the data is
> correct, to correlate the way it calculates ratings, and attributes
> grades using this data?

In fact, Kees already suggested that a few days ago, but nobody replied.

Personally I've no opinion on this matter as I don't use the textual
rating for anyting.

Jørn

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