Re: [Bug-gnubg] BUG: Rollout statistics wrong

[Jim Segrave]

On Mon 08 Mar 2004 (08:40 -0000), Ian Shaw wrote:
> 
> Jim Segrave wrote on Sunday, March 07, 2004 11:55 AM:
> > On Thu 04 Mar 2004 (09:23 -0000), Ian Shaw wrote:
> > > 
> > > The rollout statistics in this file look completely rubbish. 
> > > There are negative numbers in some entries , and the final 
> > percentage reads 1.#J%.
> > > 
> > > The two positions rolled out are the two double/takes.
> > > 
> > > Windows version 1.1444 031101.
> > > The rollouts were stopped and extended several times, but 
> > all within the same session of gnubg.
> > 
> > I loaded both of these into gnubg and don't see anything odd at
> > all. Linux, gnubg 1.1504, 2 feb 2004. But nothing should have been
> > changed in the sgf processing in a long time. The values in the .sgf
> > file are reasonable - there are no negative numbers there (well, there
> > are negative exponents on some floats - 3.972246486e-005 for example,
> > but that's normal.
> > 
> It isn't the cube decision stats that are the problem. It is the numbers in 
> the View Statistics window that are dodgy.
> 
> Try setting your rollout trials to a low number like 1296 (since I've already 
> done about 5000 trials) and select to rollout the cube decision. It should be 
> immediately complete. If you then View Statistics you should see, for 
> example, that -1 games ended on a 128 cube.

Rollout stats aren't kept when extending rollouts - I'll need to
disable the button when a rollout is extended.

> Secondary issue:
> 
> When resuming a rollout, the window shows 0 trials until the first new trial 
> is complete. It would be nice to immediately show the start position. It 
> doesn't matter much on 0-ply, but it is unnerving on 2-ply, where it looks 
> for a while as if all your previous hard work has been lost and gnubg is 
> starting again.

Good point.

-- 
Jim Segrave           address@hidden