clean_and_rotate: Standardize direction and add play information
In guga31bb/ngscleanR: Helper Functions for Cleaning Player Tracking Data

Description Usage Arguments Value

View source: R/cleaning_functions.R

Standardize direction and add play information.

1	clean_and_rotate(df)

`df`	A dataframe of player tracking data obtained from a Big Data Bowl or NGS highlights

The original data with the columns below appended. Note that all returned columns will have cleaned names, including the original columns in df (e.g. play_id rather than playId), to end the tyranny of weird Big Data Bowl column names.

team_name: Values of home team (eg "SEA"), away team (eg "GB"), or "football"
defense: Whether player is on defense (football has 0 here)
play: Unique play identifier in format "gameid_playid" with gameid old GSIS format. Ex: "2018091000_1101".
nflfastr_game_id: Game ID in nflfastR format. Ex: "2018_01_ATL_PHI"
week: Week of season
posteam: Possession team
home_team: Home team (e.g. "PHI")
away_team: Away team (e.g. "ATL")
down: Down
ydstogo: Yards to go
yardline_100: Distance from opponent end zone
qtr: Quarter
epa: Expected Points Added gained on play from nflfastR
yards_gained: Yards gained on play
air_yards: Air yards (when applicable)
desc: Play description
pass: Was it a dropback? From nflfastR
rush: Was it a designed rush attempt? From nflfastR
play_type_nfl: Play type from NFL data. E.g. "PASS", "PENALTY", "RUSH", "SACK", "PUNT", etc.
team_color: Primary team color. Useful for play animations
team_color2: Secondary team color. Useful for play animations
team_logo_espn: URL of team logo
los_x: x location of line of scrimmage (e.g. 20 means own 10 yard line)
dist_from_los: Distance of player from line of scirmmage in x direction
o_x: Orientation of player in x direction
o_y: Orientation of player in y direction
dir_x: Direction of player in x direction
dir_y: Direction of player in y direction
s_x: Speed of player in x direction
s_y: Speed of player in y direction
a_x: Acceleration of player in x direction
a_y: Acceleration of player in y direction