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Re: Easy to use Offensive Power Rankings (OPR) program for mid-regional scouting
I have a question about Oregon for 2010. I was trying to find out opr and pm for teams at OR this year. and it failed. any ideas?
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Re: Easy to use Offensive Power Rankings (OPR) program for mid-regional scouting
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Pos Reg Team OPR SAA PM RPI |
Re: Easy to use Offensive Power Rankings (OPR) program for mid-regional scouting
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Re: Easy to use Offensive Power Rankings (OPR) program for mid-regional scouting
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Also, I dont want/need a Linux version, the Windows version is great. Thanks Bongle! I have a dual boot machine and the Windows boot is what I use at competitions anyway to run Windriver, Excel and save my battery. Windows is the right choice since all of the KOP software is Windows. |
Re: Easy to use Offensive Power Rankings (OPR) program for mid-regional scouting
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Re: Easy to use Offensive Power Rankings (OPR) program for mid-regional scouting
Did the OPR miss the mark for the Florida Regional? The alliance of 1251 + 1612 + 86 won the whole shebang with a combined OPR of 5.4 versus alliances with group OPRs of 9.9, 9.2, 7.1, 6.4, 5.6, 5.2, and 5.10. If OPR were a good predictor wouldn't the team of 1592 + 179 + 3164 be a virtual lock with a group OPR of 9.9? In the past OPR usually was a good indicator of the strongest alliance in the elimination rounds. In the Quarterfinals, the top three teams by group OPR were knocked off.
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Re: Easy to use Offensive Power Rankings (OPR) program for mid-regional scouting
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You need to understand, OPR is just one tool to help you decide. I'll bet in qualifications, 1251, 1612 and 86 were not able to compete along side teams that would compliment their game strategies or abilities. Look at it as a perfect storm. When you bring three teams together that fully complimented each others abilities and were able to play as a single unit, their performance as an alliance would be way better than they were able to show individually during qualifications. This is why raw numbers is not always your best predictor. Observation and paying attention to all input is a scout's best approach. Leaning on one detail, like OPR, can be mis-leading. |
Re: Easy to use Offensive Power Rankings (OPR) program for mid-regional scouting
Another reason OPR might be a poor elimination predictor is because the rules essentially change in eliminations.
In qualifying, it isn't really in anyone's interest for teams to play heavy-handed defense. In eliminations, defense is a key factor. So teams with a pneumatic-tire 8-motor, rocket-powered 8WD suddenly are much more useful, while teams with highly mobile feather-light (and light on grip, like mechanum/omni) robots suddenly find it much harder to score. A perfect example is 469: they have a low OPR (well... compared to their reputation) because they are only at maximum effectiveness when they're playing with highly effective robots that can get their ball loop going. In qualifying, that might not happen often. An ball-supplier bot is limited in offensive power by its home-zone teammate that is trying to get balls in the net. 469 is a defense-proof near-perfect ball supplier. When defense ramps up and solid ball-deliverers become available, suddenly 469 is an unstoppable force. |
Re: Easy to use Offensive Power Rankings (OPR) program for mid-regional scouting
At the Oregon, New Jersey, and Pittsburgh regionals, the alliances with the best OPR were the winners. Over the years, it has been consistant that the OPR team score was a 90%ile indicator of sucess. Bongle makes a great point about the defense as the 1251+1612+86 alliance was the number 2 rated defense in the eliminations. I am curious about how many of the regional winning teams were predicted by OPR for weeks 1 & 2 in 2010. At a glance, Florida seems the exception.:confused:
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Re: Easy to use Offensive Power Rankings (OPR) program for mid-regional scouting
Also, OPR cannot take into account teams that are playing the "seeding points game" by scoring goals for their opponents. There are several very high performing teams I know of that have abysmal OPRs for this reason - because 2 or 3 times a match they were scoring for the other alliance. That's a huge hit to your OPR, SAA and ultimately your PM.
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Re: Easy to use Offensive Power Rankings (OPR) program for mid-regional scouting
I think you need to take a look at all four stats to determine who the best robot is on the field.
High OPR + Unusually High SAA + mediocre PM + Strong RPI = a really good robot High OPR + Low SAA + strong PM + Strong RPI = Good Robot thats how i look at the stats. |
Re: Easy to use Offensive Power Rankings (OPR) program for mid-regional scouting
I have not used RPI in the past since it has such a narrow range of data like 0.16 to 0.40. Obviously higher is better as an indicator of strength of schedule and wins. However its relationship to OPR, DPR, & PM is not easy to compare since these valus are often 20 times larger
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Re: Easy to use Offensive Power Rankings (OPR) program for mid-regional scouting
I noticed this weekend that this is the year of the prediction feature. Running it for KC, the self-check indicates it would have been 70% correct after only 39 matches, and consistently 80% correct after 48 matches. For Lunacy it does much worse. This seems to indicate that this game is much more predictable, and that good robots in one match will often do well in subsequent matches. Note that this is only for predicting the winner. So although it is better at predicting the winner of a match than last year, that's a less useful thing to do than it was last year.
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After 10 matches, OPR would not have been computable |
Re: Easy to use Offensive Power Rankings (OPR) program for mid-regional scouting
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Man this code is awful.
Anyway, v12 (based on v7) is now ready. The prediction feature now has awareness of the new seeding system, though since it can't know penalties, the predicted seeding scores are too high. Even if I gave it an entire regional of match scores with no prediction, the rankings it would give out would still be incorrect because teams would not be getting as many points as they should. |
Re: Easy to use Offensive Power Rankings (OPR) program for mid-regional scouting
Looks like you are missing the Ann Arbor District Event (WC is the abbreviation that FIRST uses) Last year it was the Lansing District.
-Clinton- |
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