Myracle GUI

[mar]

build 160 is up:
- engine listboxes now use string-based (multi-letter) search similar to filelist
- new crosstable sorting option (none -> unsorted)

@Colin: thanks

[Max]

I'm sorry but I'll not add any new complexity when it comes to pairings.

That's fine, just wanted to make sure I didn't miss any setting.

Thank you for the new unsorted crosstable!

[Modern Times]

Hi Martin, what does Myracle use in the tournaments table to calculate Elo and the error margins ?

[mar]

for elo perf it uses the simple formula

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-400 * log10(1/winrate - 1)

let's call it elo_delta

for error bars first std_dev is computed using

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sd = sqrt(wins * (1-wr)^2 + draws * (0.5-wr)^2 + losses * (0-wr)^2) / sqrt(num_games)

then error bars as

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eb = 0.5 * abs(elo_delta(wr + 1.96*sd) - elo_delta(wr - 1.96*sd))

where wr = winrate

as a reference I refer to this url viewtopic.php?t=51003, but it seems to discuss LOS rather than eb (I don't compute LOS in myracle)

[Modern Times]

Thanks. I ran one of my ad-hoc tournaments through Ordo and the ratings and error bars were extremely close. Excellent.

[mar]

build 161 is up:
- fix PlyCount mismatch in tournament pgn for some adjudication types, like time forfeits and xboard engines resigning

also the windows bundle now includes EveAnn 8.0 (need to update engines folder and bundle_config.dat)