NCAA POWER INDEX CALCULATION METHOD
Step 7 - Check Differences
Compare each team's NPI for the current pass to its NPI from the previous pass.
If any of them are greater than your "maximum change" value, go back to Step 4 and start another pass.
If none of them are greater, then you are done, and your current pass NPIs are the final NPIs.
One other thing you should be checking
Occasionally, you will come across a set of dial settings where the NPIs just keep getting larger and larger with each pass.
What I do is, if either of these two things happens, stop the calculations and just throw out the ratings for this set of dials:
- If all of the NPIs are greater than the Quality Win Bonus Minimum Rating Dial value, since every game will be counted as a "quality win";
- If, after 10,000 passes, at least one team's NPI is changing by more than your maximum change value.
Previous - Step 6 - Check Losses