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Antar
Antar
That's a difficult question, but, gun to my head, I'd say 50. You want to talk ratings? I can get on IRC.
Aldaron
Aldaron
I'm at work ATM, just wasting time brainstorming cause bored
Antar
Antar
I really think you would have liked COIL given the opportunity to test it. Yes, it has issues when number of battles is low, but if what you're looking for is a clean cutoff for reqs, I think it's ideal.
Aldaron
Aldaron
We can probably fine tune some parameters with COIL to see what we want ya.

about calculating GXE: Given a player rating R and a rating deviation RD:
GLIXARE Rating = 0, if RD > 100
GLIXARE Rating = round(10000 / (1 + 10^(((1500 - R) * pi / sqrt(3 * ln(10)^2 * RD^2 + 2500 * (64 * pi^2 + 147 * ln(10)^2)))))) / 100, otherwise

that is in x-act's thread...do you know where he gets some of those numbers from?
Antar
Antar
Yes. I know where he gets ALL of those numbers from.

GXE = prob. of winning against random person on the ladder = prob. of winning against an unknown player.

To get the values on that page, you have to plug in the rating of an unknown player as "R2" into the formula for E as found here: http://en.wikipedia.org/wiki/Glicko_rating_system
Antar
Antar
But note that when X-Act wrote his formula he assumed that the distribution of player strengths had a std.dev of 350, so the rating of an unknown player was 1500±350. My analysis has shown that the correct unknown rating is actually 1500±130. So the formula for GXE now is different than it used to be.
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