|
Re: 2015 OPR After Week Two Event
How are you handling "DPR"? If you're including coopertition points in the OPR, then adding coop points should not raise the CCWM--coop points raise the opposing alliance score by an equal amount. In that case, the difference between the OPR (that includes coop pts) and the CCWM should be the average coop points. In the past this would be interpreted as the "DPR." When I looked at the stats on one of the sites that had all three (TBA?), the sum of the CCWM and DPR closely approximated the OPR which was what I expected (even if there were some oddities among a couple of teams).
It looks like the residual computation of DPR in your database also closely approximates the average coop score. I think unlike past years, the CCWM may be a much better measure of robot offensive capability in the elimination rounds than the OPR due to this distortion from scoring in quals that is not available in the playoffs.
BTW, this may also reveal how the DPR is not a particularly valid measure for determining "defensive" ability. It shows how a team's alliance scored ia affected but NOT how an opposing alliance's score is changed from its potential. A valid DPR would measure how the OPR of the opposing alliance is affected by a single team on the subject alliance. That's a more complicated two-stage analysis than what is done here.
|