Re: [Bug-gnubg] Confusing GNU rollout results !!

[Nis Jorgensen]

--On 13 December 2002 09:29 +0000 Ian Shaw <address@hidden> wrote:

> Let's look at play 2 where it is simple to do the math. We win the match
> 6.4% on our G's plus half of the remaining 43.2% wins or 21.6 + 6.4 =28 %
> and GNU is reporting this as 28.24% !! Is GNU doing two different
> rollouts or is something screwing up with truncating to the bearoff
> database ?
>
> What's wrong ? ....neilkaz....
> ----------------------------------------
>
> I've checked the evaluations, and they seem to be correct (within the
> limits of rounding error).

Ian, what do you mean here? While the example Neil chose is not the one 
with the biggest deviation (move 1 is) it is outside rounding error range.

>     1. Cubeful 2-ply    bar/17 11/7(2)               MWC:  28.85%
> [28.855}        0.521 0.056 0.001 - 0.479 0.079 0.001
>         2-ply cubeful 100% speed [world class]
>     2. Cubeful 2-ply    bar/21 13/9(3)               MWC:  28.72% (
> -0.13%)   [28.70%]        0.494 0.080 0.002 - 0.506 0.136 0.004
>         2-ply cubeful 100% speed [world class]
>     3. Cubeful 2-ply    bar/17 8/4(2)                MWC:  28.24% (
> -0.61%)   [28.20%]        0.499 0.065 0.001 - 0.501 0.100 0.002
>         2-ply cubeful 100% speed [world class]

Your evaluation  does not show the anomaly. Neil's rollout does.

--
Nis Jorgensen
Amsterdam