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nflfastR 4.0.0
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@mrcaseb mrcaseb released this 15 Feb 19:18
v4.0.0
a9a06c7
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Breaking changes

Changed Functions

  • Deprecated the arguments source and pp all across the package. Using them will cause a
    warning. Parallel processing has to be activated by choosing an appropriate future::plan() before
    calling the relevant functions. For more information please see the package documentation.
  • The function build_nflfastR_pbp() will now run decode_player_ids() by default (can be deactivated with the argument decode = FALSE).
  • The function build_nflfastR_pbp() will now run add_xpass() by default and add the new variables xpass and pass_oe.
  • The functions fast_scraper() and build_nflfastR_pbp() now allow the output of fast_scraper_schedules() directly as input so it's not necessary anymore to pull the game_id first.

New Functions and Variables

  • Added the new function load_pbp() that loads complete seasons into memory for fast access of the play-by-play data.
  • Added the new variables rushing_yards, lateral_rushing_yards, passing_yards, receiving_yards, lateral_receiving_yards to fix an old bug where yards_gained gets overwritten on plays with laterals (#115).
  • Added columns vegas_wpa and vegas_home_wpa which contain Win Probability Added from the spread-adjusted WP model
  • Added column out_of_bounds
  • Added columns fantasy, fantasy_id, fantasy_player_name, and fantasy_player_id that indicate the rusher or receiver on the play
  • Added columns tackle_with_assist, tackle_with_assist_1_player_id, tackle_with_assist_1_player_name, tackle_with_assist_1_team, tackle_with_assist_2_player_id, tackle_with_assist_2_player_name, tackle_with_assist_2_team

Models and Miscellaneous

  • Tuned spread-adjusted win probability model one final (?) time. Expected points is now no longer
    required for calculate_win_probability()
  • Added field descriptions vignette("field_descriptions") with a searchable list of all nflfastR variables
  • Switched data source for 2001-2010 to what is used for 2011 and on
  • All models have been moved to the fastrmodels package
  • Added the data frames ?field_descriptions and ?stat_ids to the package

Minor improvements and fixes

  • Fix bug where fixed_drive and series weren't updating after muffed punt (#144)
  • Fix bug induced by fixing the above (#149)
  • Fix bug where some special teams plays were incorrectly being labeled as pass plays (#125)
  • Fix bug where points for safeties were given to the defteam instead of the posteam (#152)
  • Fix bug where a muffed punt TD was given to the wrong team in a 2011 Jaguars game (#154)
  • Win probability is now calculated prior to PAT attempts rather than using WP on the ensuing kickoff
  • Improved performance of internal functions that speed up the rebuilding process in update_db()
    (added qs and curl to dependencies)
  • Fixed a bug where calculate_expected_points() and calculate_win_probability() duplicated some existing variables instead of replacing them (#170)
  • Fixed a bug where penalty_type wasn't "no_play" although it should have been (#172)
  • Fixed a bug where penalty_team could be incorrect in games of the Jaguars in the seasons 2011 - 2015 (#174)
  • Fixed a bug related to the calculation of epa on plays before a failed pass interference challenge in a few 2019 games (#175)
  • Fixed a bug related to lots of fields with NA on offsetting penalties (#44)
  • Fixed a bug in epa when possession team changes at end of 1st or 3rd quarter (#182)
  • Fixed a bug where various functions have left open connections
  • vegas_wp is now NA on final line since there is no possession team
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