Chief Delphi - The Great Database

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Re: The Great Database

Quote:

Originally Posted by Wing (Post 1217050)

I don't know about you, but I've always heard that OPR and CCWM aren't the best of statistics, and it makes sense since these are calculated by solving 6 simultaneous equations.

Not to shock you, but OPR requires finding the least-squares solution to N simultaneous equations, where N is the number of teams in the data set being analyzed. N can vary from approx 50 if analyzing only one event, all the way up to over a thousand if doing end-of-season combined analysis for all events.

This type of data processing is widely used in many fields to process raw data to gain insight. It's not the solving of simultaneous equations that affects the usefulness of the resulting statistics. It's the assumptions that go into building the model. In the case of OPR for FIRST, the scoring method can have a strong effect on the usefulness of OPR.

Re: The Great Database

Quote:

Originally Posted by Ether (Post 1217187)

One upped again by Ether :P. I definitely didn't mean to downplay any of the thought that went into forming the OPR algorithm, but my old team has been on the bad end of OPR inconsistencies, so I wanted to make a call for an accurate calculation based on actually counting each individual robot's score.