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Unread 24-08-2016, 14:47
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Re: Error bar of OPR in Stronghold

Quote:
Originally Posted by Whatever View Post
Stronghold was my first year as a mentor in FRC. I have been interested in the OPR statistic. One thing I have noticed is it commonly gets quoted to 2 decimal places which seems like way too much accuracy.
I quote OPR to 2 decimal places in my scouting database, and I agree that this is generally far too high of precision. The reason I do this is for consistency. Depending on the category, higher precision may be required to present any useful information. For example, the "teleop Tower Captured" metric exclusively had values between -1 and +1. Without any decimal precision, this metric would be nearly worthless. With 1 decimal point precision, there is still in my opinion useful information being left out. So I decided to use 2 decimal point precision. Since I wanted consistency over all metrics, I just used 2 decimal point precision over all metrics, including raw OPR.

The other consideration we should have is that the "correct" level of precision for OPR varies with the game. In a year like this, where scores were frequently in the 100s, no decimal point precision is needed. However, in 2010, where scores were frequently less than 10, the first decimal point value was essential, and 2 decimal point precision was also arguably useful.

I would tend to agree though that any precision beyond the decimal point for raw OPR from the past 5 years is not meaningful.
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