-- Explanation of Data Items --
Linear Regression Power Ratings - Based upon a Linear Regression analysis of points scored and allowed (i.e. Margin of Victories and Defeats). Simply explained, the above Ratings reflect differences based upon the following: "If Team A beats Team B by 7, and Team C beats Team D by 13, and Team C beats Team A by 2, etc., how much better is Team A than Team D?" Thus the above Ratings attempt to compare all teams based upon who beats who and by how much. The Ratings tend to be more accurate as the season progresses.
Average Line Played Against Power Ratings - Uses a similar concept as the Linear Regression Power Ratings, but are based on the lines used by the linesmakers in all of a team's games. The more that a team is favored, the higher its Rating. These Ratings are a good tool in evaluating and assessing how the linesmaker views each team and can be used as a guide in makeing lines on upcoming games based upon the lines that have been madein prior games.
Average Result Versus Line Power Ratings - Uses the concept described above for Average Line Played Against Power Ratings, but does so from the perspective of how a team has performed relative to the pointspread. For example, a team that is favored by 7 points and wins by 10 points has exceeded the line by 3 points while their opponent has fallen short by 3 points. Similarly a 4 point underdog that wins the game straight up by 10 points has exceeded the line by 14 points and their opponent has fallen short by 14. These Ratings can used a measurement of over-achievement and under-achievement by each team.
NOTES: Each team's raw Rating is adjusted for their individual Home Field Advantage (HFA) by adding one-half of the HFA to their raw rating to determine their Home Rating and subtracting one-half of the HFA from their raw Rating to determine their Road (away) Rating.
