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NBA Stats

July 12, 2014

NBA Estimated Impact A player rating  that uses elements from the box score only.

NBA Non Prior Informed RAPM (“NPI RAPM”) A player rating that is based on team point margins in stints where the player was on the floor. This is the most basic version of RAPM and only uses data from the year in question.

NBA Prior Informed RAPM (“PI RAPM”) A version of RAPM that uses information from previous seasons to increase stability and predictive accuracy.

NBA Boxscore Informed RAPM (“BI RAPM”) A version of RAPM that uses information from the box score to increase stability and predictive accuracy. In this version, RAPM is calculated with estimated impact, rather than 0, as the prior, then mean regressed somewhat.

Pace and Ratings (1952-2013) An estimation of each team’s possessions and the rates at which they use those possessions.

NBA Average Height by Position and Year (1952-2014)

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