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Old 29th December 2006, 03:50 PM
tailwag tailwag is offline
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Join Date: Aug 2005
Posts: 45
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Quote:
Originally Posted by jfc
weighted harmonic mean of matched bets.


For those who don't know what you are talking about, including me:

Weighted Arithmetic Mean:

(x + y)/ 2

Weighted Harmonic Mean:


2xy / (x + y)



Now that's as clear as mud :-)


Okay, so why did you include 'matched bets', why not matched bets/2 which is what is really in play from any one perspective. The 'winner' is refunded this amount from escrow, so it is never really a factor. I guess it won't change the price whether it's matched or halved, but in the interests of correctness.


The matched bets thing is to ramp up perceived volumes, where there aren't any.


Tailwag
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