pic: Archimedes Scouting: OPR vs. Robot Performance (Scatter Plot)

[Citrus Dad]

Originally Posted by Loose Screw

This graph is very interesting and shows that OPR doesn't always accurately portray scoring ability.

It's been known that OPR doesn't reflect actual scoring ability. It's a regression analysis that computes the implied "contribution" to scores. Unfortunately no one ever posts the estimates' standard errors (which I imagine to be enormous with 10 or so observations.)

In 2013, our Curie OPR was 27 points below our actual scoring because we were scheduled with really good partners (yes it was a factor in qualifying first) who performed below their average in other matches simply because there's only so much that 3 strong robots can do on a single alliance.

In 2014, the OPR had little to do with actual goal scoring. I think we scored one 10 point goal in all of the qualifying rounds and no goals of any kind in the elimination rounds, but we managed the midfield passing and trussing.

I suggest running a log regression on this data. I can see that it has a diminishing relationship between OPR and scoring rather than a linear one. I'd be interested in the parameter on the log variable.