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Fw: [Bug-gnubg] The meaning of the numbers in the double evaluation
From: |
W.Stroop |
Subject: |
Fw: [Bug-gnubg] The meaning of the numbers in the double evaluation |
Date: |
Tue, 19 Nov 2002 03:23:55 +0100 |
----- Original Message -----
From: "W.Stroop" <address@hidden>
To: "Tim Daughters" <address@hidden>
Sent: Tuesday, November 19, 2002 3:21 AM
Subject: Re: [Bug-gnubg] The meaning of the numbers in the double evaluation
>
> ----- Original Message -----
> From: Tim Daughters
> To: address@hidden
> Sent: Saturday, November 16, 2002 10:34 PM
> Subject: [Bug-gnubg] The meaning of the numbers in the double evaluation
>
>
> What is meant by the numbers to the right of the "No double", and "Double,
> take" fields when I choose "Evaluate"? I thought that it would be the
> expected value of each option (I think that is true for "Double, pass"
since
> it is always 1.), but it can't be right for the other two options. Here
is
> an example:
>
> I set up a board position with the player having a checker on the 3 and 2
> point, and gnubg having a checker on the 2 point. It is the player's
roll.
> The player will win with 25 out of 36 rolls, and will lose on the other
11.
> That gives the player an expected value of (25-11)/36 = 0.389 to roll it
out
> and double that for an accepted double. Since the player will refuse any
> redouble if he doesn't win on the next roll.
>
> The Evaluation option lists this information:
>
> No double : 0.594
> Double, pass: 1.000
> Double, take : 0.594
>
> What do those numbers mean?
>
>
>
> Hi there :)
>
> The program improved a lot since August .
>
> Great job !!!!
>
> Those numbers represent equity.
> I did not succeed in copying y're result of the same posistion. ( i
> suppose it's a money game)
> Instead i got this :
> Evaluator: BEAROFF2
>
> Player Opponent
> Position 14 2
>
> Rolls Player Opponent
> 1 69,444 100,000
> 2 30,556 0,000
>
> Average rolls
> Bearing off
> Player Opponent
> Mean 1,305 1,000
> Std dev 0,461 0,021
>
> Win W(g) W(bg) L(g) L(bg) Equity (cubeful)
> static: 69,4% 0,0% 0,0% 0,0% 0,0% (+0,389 (+0,594))
> 1 ply: 69,4% 0,0% 0,0% 0,0% 0,0% (+0,389 (+0,778))
> 2 ply: 69,4% 0,0% 0,0% 0,0% 0,0% (+0,389 (+0,778))
>
>
> Double, take : +0,778
> Double, pass : +1,000 (+0,222)
> No double : +0,389 (-0,389)
>
> Correct cube action: Double, take
>