Update README.md

README.md

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+## This dataset was downloaded from the good folks at fivethirtyeight. You can find the original (or in the future, updated) versions of this and several similar datasets at [this GitHub link.](https://github.com/fivethirtyeight/data/blob/master/nba-raptor/README.md)
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+
+#### Here are the columns in this dataset, which contains data on every NBA player, broken out by season, since the 1976 NBA-ABA merger:
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+Column | Description
+-------|---------------
+`player_name` |	Player name
+`player_id` |	Basketball-Reference.com player ID
+`season` |	Season
+`season_type` |	Regular season (RS) or playoff (PO)
+`team` |	Basketball-Reference ID of team
+`poss` |	Possessions played
+`mp` |	Minutes played
+`raptor_box_offense` |	Points above average per 100 possessions added by player on offense, based only on box score estimate
+`raptor_box_defense` |	Points above average per 100 possessions added by player on defense, based only on box score estimate
+`raptor_box_total` |	Points above average per 100 possessions added by player, based only on box score estimate
+`raptor_onoff_offense` |	Points above average per 100 possessions added by player on offense, based only on plus-minus data
+`raptor_onoff_defense` |	Points above average per 100 possessions added by player on defense, based only on plus-minus data
+`raptor_onoff_total` |	Points above average per 100 possessions added by player, based only on plus-minus data
+`raptor_offense` |	Points above average per 100 possessions added by player on offense, using both box and on-off components
+`raptor_defense` |	Points above average per 100 possessions added by player on defense, using both box and on-off components
+`raptor_total` |	Points above average per 100 possessions added by player on both offense and defense, using both box and on-off components
+`war_total` |	Wins Above Replacement between regular season and playoffs
+`war_reg_season` |	Wins Above Replacement for regular season
+`war_playoffs` |	Wins Above Replacement for playoffs
+`predator_offense` |	Predictive points above average per 100 possessions added by player on offense
+`predator_defense` |	Predictive points above average per 100 possessions added by player on defense
+`predator_total` |	Predictive points above average per 100 possessions added by player on both offense and defense
+`pace_impact` |	Player impact on team possessions per 48 minutes