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Unread 20-03-2015, 18:40
Rachel Lim Rachel Lim is offline
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Re: Teams scoring vast majority of points

Quote:
Originally Posted by Ether View Post
% of OPR sum vs % of Teams for weeks 1 thru 3 Match Results data
That's really cool, thank you! The negative OPR threw me off for a while; it's strange how the top 90% has a higher total OPR than all teams.

Just some statistics I got from OPR data (I used column G on the "OPR results" tab from Ed Law's spreadsheet):
  • The top 10 teams have a higher total OPR than the bottom 516 teams
  • The top 0.5% of teams have a higher total OPR than the bottom 28.5% of teams

  • The top 20 teams have a higher total OPR than the bottom 603 teams
  • The top 1% of teams have a higher total OPR than the bottom 33% of teams

  • The top 845 teams (47%) have 80% of the total OPR
  • The top 388 teams (21%) have 50% of the total OPR
  • The top 143 teams (8%) have 25% of the total OPR

What's really interesting is that following the stats above compared to the ones I had about QA, OPR seems to peak off more quickly, but have a larger "middle" section. I feel like part of the issue is that the OPR data I had only took the higher value for teams that have competed twice, as compared to the QA which had everything.

Graphing OPR vs QA gave me this:
Click image for larger version

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Which seems to have a steeper curve in OPR, but not by as much as the stats imply. If I have some time I'll redo the OPR calculations with full data and check what I did for the QA ones.
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