To Aaron Schatz and Football Outsiders for providing charting data to correctly mark scrambles in the 2005 season.To Lau Sze Yui for developing a scraping function to access JSON-formatted NFL play-by-play beginning in 2001.To Nick Shoemaker for finding and making available JSON-formatted NFL play-by-play back to 1999 ( nflfastR uses this source for 19 and previously also used it for 2001-2010).We owe a debt of gratitude to the original nflscrapR team, Maksim Horowitz, Ronald Yurko, and Samuel Ventura, without whose contributions and inspiration this package would not exist. Includes a function update_db() that creates and updates a database. ![]() Features models for Expected Points, Win Probability, Completion Probability, and Yards After the Catch (see section below).Hosts a repository of play-by-play data going back to 1999 for very quick access.Includes series information, including series number and series success.Includes drive information, including drive starting position and drive result.Includes completion probability ( cp), completion percentage over expected ( cpoe), and expected yards after the catch ( xyac_epa and xyac_mean_yardage) in play-by-play going back to 2006.As suggested by the package name, it obtains games much faster.The package contains NFL play-by-play data back to 1999.nflfastR expands upon the features of nflscrapR: NflfastR is a set of functions to efficiently scrape NFL play-by-play data.
0 Comments
Leave a Reply. |