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Originally Posted by SteveGPage
I have a general question that I would love for you all to consider. I am a firm believer in the OPR/DPR concept, and included it in our team's scouting application. But what I found was that in this game, ALLIANCE data in a match is not that helpful.
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Any team that scouts entirely off of the output of this program (or any OPR program) is doing something wrong. Personally, I use it to get a quick idea of which robots to watch if I'm watching a webcast and haven't been following an entire regional. I completely second your recommendation of in-person scouting. Just like the FRC rankings system often fails an otherwise good team, the OPR ranking algorithm can screw up too.
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If a really good team has an alliance with two essentially non-functional robots in 2 or 3 of your matches - the numbers look terrible for that team.
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That's not necessarily true. If your two non-functional alliance partners are consistently non-functional, then your OPR should be unaffected. The main thing that throws off OPR is inconsistency. If an very good team has a battery fall out during a match, then it affects their alliance partners' OPR scores quite badly, because it 'looks' to the algorithm like their presence resulted in a massive reduction in their alliance's score.