load_pbp() and load_player_stats() now call nflreadr::load_pbp() and nflreadr::load_player_stats() respectively. Therefore the argument qs has been deprecated in both functions. It will be removed in a future release. Running load_player_stats() without any argument will now return player stats of the current season only (the default in nflreadr).source and pp in the functions fast_scraper_*() and build_nflfastR_pbp() have been removedracr (“Receiver Air Conversion Ratio”), target_share, air_yards_share, wopr (“Weighted Opportunity Rating”) and pacr (“Passing Air Conversion Ratio”) to the output of calculate_player_stats()report() which will be used by the maintainers to help users debug their problems (#274).update_db()receiver names (#270)return_team on interception return touchdowns (#275)wpa variables are NA on end game linewp variables are 0, 0.5, 1, or NA on end game linedecode_player_ids() now really decodes the new variable fantasy_id (#229)wp values depending on the first game in the data set (#183)sack_yards, sack_fumbles, rushing_fumbles and receiving_fumbles to the output of the function calculate_player_stats(), thanks to Mike Filicicchia (@TheMathNinja). (#239)calculate_player_stats() falsely counted lost fumbles on aborted snaps (#238)season_type to the output of calculate_player_stats() and load_player_stats() in preparation of the extended Regular Season starting in 2021 (#240)season_type definitions in preparation of the extended Regular Season starting in 2021 (#242)fixed_drive where it wasn’t incrementing when there was a muffed punt followed by timeout (#244)fixed_drive where it wasn’t incrementing following an interception with the intercepting player then losing a fumble (#247)safety_player_name and safety_player_id to the play-by-play data (#252)usethiscalculate_player_stats() that aggregates official passing, rushing, and receiving stats either at game level or overallload_player_stats() that loads weekly player stats from 1999 to the most recent seasonadd_xyac() and clean_pbp() has been significantly improvedtd_player_name and td_player_id to clearly identify the player who scored a touchdown (this is especially helpful for plays with multiple fumbles or laterals resulting in a touchdown)calculate_player_stats() now adds the variable dakota, the epa + cpoe composite, for players with minimum 5 pass attempts.home_opening_kickoff to clean_pbp()sack_player_id, sack_player_name, half_sack_1_player_id, half_sack_1_player_name, half_sack_2_player_id and half_sack_2_player_name who identify players that recorded sacks (or half sacks). Also updated the description of the variables qb_hit_1_player_id, qb_hit_1_player_name, qb_hit_2_player_id and qb_hit_2_player_name to make more clear that they did not record a sack. (#180)qb_scramble was incomplete for the 2005 season because of missing scramble indicators in the play description. This has been mostly fixed courtesy of charting data from Football Outsiders (with thanks to Aaron Schatz!). Some notes on this fix: Weeks 1-16 are based on charting. Weeks 17-21 are guesses (basically every QB run except those that were a) a loss, b) no gain, or c) on 3/4 down with 1-2 to go). Plays nullified by penalty are not included.name, id, rusher, and rusher_id to be the player charged with the fumble on aborted snaps when the QB is unable to make a play (i.e. pass, sack, or scramble) (#162)clean_pbp() now standardizes the team name columns tackle_with_assist_*_teamdrive that was causing incorrect overtime win probabilities (#194)posteam was not NA on end of quarter 2 (or end of quarter 4 in overtime games) causing wrong values for fixed_drive, fixed_drive_result, series and series_resultfixed_drive and series were falsely incrementing on kickoffs recovered by the kicking team or on defensive touchdowns followed by timeoutsfixed_drive and series were falsely incrementing on muffed punts recovered by the punting team for a touchdownadd_xpass() crashed when ran with data already including xpass variables.epa when a safety is scored by the team beginning the play in possession of the ball (#186)calculate_player_stats() forgot to clean player names by using their IDscalculate_player_stats() (#203)update_db() no more falsely closes a database connection provided by the argument db_connection (#210)yards_gained was missing yardage on plays with laterals. (#216)fixed_drive now increments properly on onside kick recoveries (#215)fixed_drive no longer counts a muffed kickoff as a one-play drive on its own (#217)fixed_drive now properly increments after a safety (#219)penalty_type and updated the description of the variable to make more clear it’s the first penalty that happened on a play. (#223)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.build_nflfastR_pbp() will now run decode_player_ids() by default (can be deactivated with the argument decode = FALSE).build_nflfastR_pbp() will now run add_xpass() by default and add the new variables xpass and pass_oe.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.load_pbp() that loads complete seasons into memory for fast access of the play-by-play data.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).vegas_wpa and vegas_home_wpa which contain Win Probability Added from the spread-adjusted WP modelout_of_boundsfantasy, fantasy_id, fantasy_player_name, and fantasy_player_id that indicate the rusher or receiver on the playtackle_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_teamcalculate_win_probability()vignette("field_descriptions") with a searchable list of all nflfastR variables?field_descriptions and ?stat_ids to the packagefixed_drive and series weren’t updating after muffed punt (#144)defteam instead of the posteam (#152)update_db() (added qs and curl to dependencies)calculate_expected_points() and calculate_win_probability() duplicated some existing variables instead of replacing them (#170)penalty_type wasn’t "no_play" although it should have been (#172)penalty_team could be incorrect in games of the Jaguars in the seasons 2011 - 2015 (#174)epa on plays before a failed pass interference challenge in a few 2019 games (#175)NA on offsetting penalties (#44)epa when possession team changes at end of 1st or 3rd quarter (#182)vegas_wp is now NA on final line since there is no possession teamvegas_wp)yardline_100 as an input to both win probability models (not having it included was an oversight)series was increased on PATsteam_wordmark - which contains URLs to the team’s wordmarks - to the included data frame ?teams_colors_logosupdate_db()force_rebuild of the function update_db() is now of hybrid type. It can rebuild the play by play data table either for the whole nflfastR era (with force_rebuild = TRUE) or just for specified seasons (e.g. force_rebuild = 2019:2020). The latter is intended to be used for running seasons because the NFL fixes bugs in the play by play data during the week and we recommend to rebuild the current season every Thursday.update_db() disconnected the connection to a database provided by the argument db_connection (#102)update_db() didn’t build a fresh database without providing the argument force_rebuildupdate_db() no longer removes the complete data table when a numeric argument force_rebuild is passed but only removes the rows within the table (#109)build_nflfastR_pbp(), a convenient wrapper around multiple nflfastR functions for an easy creation of the nflfastR play-by-play data setadd_xpass(), that creates columns xpass and pass_oefixed_drive which was not incrementing properly on drives that began following a timeoutusethispass = 1)fast (either TRUE or FALSE) to the function decode_player_ids() to activate the high efficient C++ decoder of the package gsisdecoderfast_scraper_roster() is finally back! It loads NFL roster of a given season.decode_player_ids() to decode all player IDs to the commonly known GSIS ID format (00-00xxxxx)source = "old" to fast_scraper() to enable scraping of old source. This is mostly useless as it doesn’t work for 2020 and provides less infodb_connection to update_db() to allow advanced users to use other DBI drivers, such as RMariaDB::MariaDB(), RPostgres::Postgres() or odbc::odbc() (please see dbplyr for more information)clean_pbp() now fixes some bugs in jersey numbersclean_pbp(), add_qb_epa() and add_xyac() can now handle empty data framesfast_scraper() to fail (affects multiple games of the 2020 season)fixed_drive that counted PAT after defensive TD as its own driveadd_xyac() breaking with some old packagesadd_xyac() and add_qb_epa() calculations being wrong for some failed 4th downsvignette("examples") with the new add_xyac() functionvignette("nflfastR-models")fixed_drive and fixed_drive_result to the output of fast_scraper() because the NFL-provided drive info is extremely buggyseries_resultclean_pbp() now adds 4 new variables passer_jersey_number, rusher_jersey_number, receiver_jersey_number and jersey_number. These can be used to join rosters.timeout_team, return_team, fumble_recovery_1_team for JAX games from 2011-2015fixed_drive and corrections to timeout_teamadd_xyac() which adds the following columns associated with expected yards after the catch (xYAC): xyac_epa, xyac_success, xyac_fd, xyac_mean_yardage, xyac_median_yardageseries_success caused by bad drive information provided by NFLspecial_teams_play, st_play_type, time_of_day, and order_sequenceold_game_id column (useful for merging to external data that still uses this ID: format is YYYYMMDDxx)clean_pbp() function now adds an aborted_play columnplay_type = no_play rather than passteams_colors_logos for the interim name of the ‘Washington Football Team’ and the corresponding logo urls.tidyselect version to be >= 1.1.0clean_pbp() now standardizes player IDs across the old (1999-2010) and new (2011+) data sources. Player IDs once again uniquely identify players, and each unique player has one unique ID (as they did before the NFL data source change):
clean_pbp() now removes all variables it is about to create to make sure nothing unexpected can happenAdded minimum version requirements to some package dependencies because installation broke for some users with outdated packages
Made a minor bug fix to catch more out-of-order plays and fixed a bug where some plays were being incorrectly dropped in older seasons
Standardized team names (e.g. SD –> LAC) in some columns we had missed
week from Expected Points models along with an update of vignette("nflfastR-models") and vignette("examples")update_db() which adds all completed games to a SQLite databasecalculate_win_probability()vignette("examples") demonstrating the usage of the above mentioned functionsdrive_real_start_time pre and post 2011game_ids were overwritten during the play by play parsingfast_scraper() now loads the raw game data from a separate raw data repo.data from the rlang package (this is a major code change that takes some getting used to but we need it in preparation of a future release)yards_gained more precisely definedvignette("examples") to demonstrate Expected Points calculator calculate_expected_points()clean_pbp()first_down_rush and return_touchdownfast_scraper() for not yet played gamesxgboost (>= 1.1) as the recent xgboost update caused a breaking change leading to failure in adding model results to dataAdded new models for Expected Points, Win Probability and Completion Probability and removed nflscrapR dependency. This is a major change as we are stepping away from the well established nflscrapR models. But we believe it is a good step forward. See data-raw/MODEL-README.md for detailed model information.
Added internal functions for EPA and WPA to helper_add_ep_wp.R.
Added new function calculate_expected_points() usable for the enduser.
Completely overhauled fast_scraper() to make it work with the NFL’s new server backend. The option source is still available but will be deprecated since there is only one source now. There are some changes in the output as well (please see below).
fast_scraper() now adds game data to the play by play data set courtesy of Lee Sharpe. Game data include: away_score, home_score, location, result, total, spread_line, total_line, div_game, roof, surface, temp, wind, home_coach, away_coach, stadium, stadium_id, gameday
fastcraper_schedules() now incorporates Lee Sharpe’s games.rds.
The functions fast_scraper_clips() and fast_scraper_roster() are deactivated due to the missing data source. They might be reactivated or completely dropped in future versions.
The function fix_fumbles() has been renamed to add_qb_epa() as the new name much better describes what the function is actually doing.
Added progress information using the progressrpackage and removed the furrr progress bars.
clean_pbp() now adds the column ìd which is the id of the player in the column name. Because we have to piece together different data to cover the full span of years, player IDs are not consistent between the early (1999-2010) and recent (2011 onward) periods.
Added a NEWS.md file to track changes to the package.
Fixed several bugs inhereted from nflscrapR, including one where EPA was missing when a play was followed by two timeouts (for example, a two-minute warning followed by a timeout), and another where play_type was incorrect on plays with declined penalties.
Fixed a bug, where receiver_player_name and receiver didn’t name the correct players on plays with lateral passes.
The output has changed a little bit.
| Dropped Variables | Description |
|---|---|
| game_key | RS feed game identifier. |
| game_time_local | Kickoff time in local time zone. |
| iso_time | Kickoff time according ISO 8601. |
| game_type | One of ‘REG’, ‘WC’, ‘DIV’, ‘CON’, ‘SB’ indicating if a game was a regular season game or one of the playoff rounds. |
| site_id | RS feed id for game site. |
| site_city | Game site city. |
| site_state | Game site state. |
| drive_possession_team_abbr | Abbreviation of the possession team in a given drive. |
| scoring_team_abbr | Abbreviation of the scoring team if the play was a scoring play. |
| scoring_type | String indicating the scoring type. One of ‘FG’, ‘TD’, ‘PAT’, ‘SFTY’, ‘PAT2’. |
| alert_play_type | String describing the play type of a play the NFL has listed as alert play. For most of those plays there are highlight clips available through fast_scraper_clips. |
| time_of_day | Local time at the beginning of the play. |
| yards | Analogue yards_gained but with the kicking team being the possession team (which means that there are many yards gained through kickoffs and punts). |
| end_yardline_number | Yardline number within the above given side at the end of the given play. |
| end_yardline_side | String indicating the side of the field at the end of the given play. |
| Renamed Variables | Description |
|---|---|
| game_time_eastern -> start_time | Kickoff time in eastern time zone. |
| site_fullname -> stadium | Game site name. |
| drive_how_started -> drive_start_transition | String indicating how the offense got the ball. |
| drive_how_ended -> drive_end_transition | String indicating how the offense lost the ball. |
| drive_start_time -> drive_game_clock_start | Game time at the beginning of a given drive. |
| drive_end_time -> drive_game_clock_end | Game time at the end of a given drive. |
| drive_start_yardline -> drive_start_yard_line | String indicating where a given drive started consisting of team half and yard line number. |
| drive_end_yardline -> drive_end_yard_line | String indicating where a given drive ended consisting of team half and yard line number. |
| roof_type -> roof | One of ‘dome’, ‘outdoors’, ‘closed’, ‘open’ indicating indicating the roof status of the stadium the game was played in. (Source: Pro-Football-Reference) |
| Added Variables | Description |
|---|---|
| vegas_wp | Estimated win probabiity for the posteam given the current situation at the start of the given play, incorporating pre-game Vegas line. |
| vegas_home_wp | Estimated win probability for the home team incorporating pre-game Vegas line. |
| weather | String describing the weather including temperature, humidity and wind (direction and speed). Doesn’t change during the game! |
| nfl_api_id | UUID of the game in the new NFL API. |
| play_clock | Time on the playclock when the ball was snapped. |
| play_deleted | Binary indicator for deleted plays. |
| end_clock_time | Game time at the end of a given play. |
| end_yard_line | String indicating the yardline at the end of the given play consisting of team half and yard line number. |
| drive_real_start_time | Local day time when the drive started (currently not used by the NFL and therefore mostly ‘NA’). |
| drive_ended_with_score | Binary indicator the drive ended with a score. |
| drive_quarter_start | Numeric value indicating in which quarter the given drive has started. |
| drive_quarter_end | Numeric value indicating in which quarter the given drive has ended. |
| drive_play_id_started | Play_id of the first play in the given drive. |
| drive_play_id_ended | Play_id of the last play in the given drive. |
| away_score | Total points scored by the away team. |
| home_score | Total points scored by the home team. |
| location | Either ‘Home’ o ‘Neutral’ indicating if the home team played at home or at a neutral site. |
| result | Equals home_score - away_score and means the game outcome from the perspective of the home team. |
| total | Equals home_score + away_score and means the total points scored in the given game. |
| spread_line | The closing spread line for the game. A positive number means the home team was favored by that many points, a negative number means the away team was favored by that many points. (Source: Pro-Football-Reference) |
| total_line | The closing total line for the game. (Source: Pro-Football-Reference) |
| div_game | Binary indicator for if the given game was a division game. |
| roof | One of ‘dome’, ‘outdoors’, ‘closed’, ‘open’ indicating indicating the roof status of the stadium the game was played in. (Source: Pro-Football-Reference) |
| surface | What type of ground the game was played on. (Source: Pro-Football-Reference) |
| temp | The temperature at the stadium only for ‘roof’ = ‘outdoors’ or ‘open’.(Source: Pro-Football-Reference) |
| wind | The speed of the wind in miles/hour only for ‘roof’ = ‘outdoors’ or ‘open’. (Source: Pro-Football-Reference) |
| home_coach | First and last name of the home team coach. (Source: Pro-Football-Reference) |
| away_coach | First and last name of the away team coach. (Source: Pro-Football-Reference) |
| stadium_id | ID of the stadium the game was played in. (Source: Pro-Football-Reference) |
| game_stadium | Name of the stadium the game was played in. (Source: Pro-Football-Reference) |