NASL Power Rankings, Games Through 3/31/2017

Definitions:

Pythagorean Expectation, Preseason = The previous year's Real Pythagorean Expectation, with a factor of regression to the mean based on the year-to-year correlation of Real Pythagorean Expectation.
Pythagorean Expectation, Real = Pythagorean expectation of points, based upon goals scored and goals allowed so far this season. An exponent of 1.27, derived from analysis of previous NASL seasons, is used
Pythagorean Expectation, Bayesian = The main power ranking. Using Bayes' Theorem, updates its value accounting for new information. Begins with the preseason ranking, then updates week to week after that.
Expected Final Points = Using the Bayesian Pythagorean Expectation, the number of points a team has already, and the possible points remaining, is found

Why am I doing a power ranking for Division II soccer league? Because it is the league Indy has a team in.

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Brohm and Calhoun: Purdue's New Top Two Choices Analyzed

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