All functions

down_distance_updater()

Update the down and distance of a drive

expected_pts_fourth()

Decision for 4th downs based on expected points

prep_pbp_data()

Add necessary columns to nflscrapR data

sample_drives()

Sample a Series of Drives, a strategy to test verses the normal strategy

sample_fourth_down_strategy()

Sample NFL play-by-play data with a specified 4th down strategy

sample_passes_rushes_strategy()

Sample NFL play-by-play data with a specified blend of rushing and passing

sample_play()

Sample one NFL play according to some strategy