Quote:
Originally Posted by Zholl
Perhaps I should ask a different question...
Ok, so if I take, for example, the TBA data from 2008's Suffield Shakedown and create matrix A based on the number of matches each team played on an alliance with each other team and matrix B is the total combined score of each of the alliances team x played on. I then took the inverse of A and found BA^-1. So would this, then, be correct?
Code:
Team # OPR
40 -5.335839956
88 -10.9064837
125 1.874189107
126 20.9022442
173 16.1766485
175 23.76233256
176 13.22479694
177 -28.94649135
178 33.50075682
181 5.801247409
195 7.939442306
228 5.275340498
230 30.37857031
236 24.79561887
348 8.741658516
500 -1.772256265
571 5.296173934
716 4.886654548
839 19.84073344
999 2.339548465
1027 15.69966416
1071 -6.45134427
1099 -3.094166838
1124 14.84119862
1373 13.59377354
1784 17.20806737
1991 -12.38365654
2064 0.156682971
2067 4.862487992
2170 19.44734797
|
There must be something wrong with your calculation. I put in all the data into my spreadsheet and I got different numbers. I have attached the spreadsheet for your review.
I have been posting 2009 FRC results with OPR and CCWM at the link below.
http://www.chiefdelphi.com/media/papers/2174
Starting from week 3, you can use it during each regional and just press one button to get updated OPR and CCWM information for that regional provided you have internet access. The source code to calculate OPR and CCWM is in there also. I don't invert matrix since it is not necessary. I use Cholesky Decomposition which is included with the source code. If you have any questions, please let me know.
Ed