nfl4th: Functions to Calculate Optimal Fourth Down Decisions in the National Football League

A set of functions to estimate outcomes of fourth down plays in the National Football League and obtain fourth down plays from <https://www.nfl.com/> and <https://www.espn.com/>.

Version:	1.0.7
Depends:	R (≥ 4.1)
Imports:	cli, curl, data.table, dplyr, janitor, jsonlite, mgcv, nflfastR (≥ 5.2.0), nflreadr, purrr, rlang, stringr, tibble, tidyr, xgboost
Suggests:	future, gt, knitr, nflplotR, rmarkdown, testthat (≥ 2.0.0), tictoc, withr
Published:	2026-03-04
DOI:	10.32614/CRAN.package.nfl4th
Author:	Ben Baldwin [aut, cre, cph], Sebastian Carl [ctb]
Maintainer:	Ben Baldwin <bbaldwin206 at gmail.com>
BugReports:	https://github.com/nflverse/nfl4th/issues
License:	MIT + file LICENSE
URL:	https://www.nfl4th.com/, https://github.com/nflverse/nfl4th/, https://github.com/nflverse/nfl4th
NeedsCompilation:	no
Materials:	README, NEWS
In views:	SportsAnalytics
CRAN checks:	nfl4th results

Documentation:

Reference manual:

nfl4th.html , nfl4th.pdf

Downloads:

Package source:	nfl4th_1.0.7.tar.gz
Windows binaries:	r-devel: nfl4th_1.0.7.zip, r-release: nfl4th_1.0.7.zip, r-oldrel: nfl4th_1.0.7.zip
macOS binaries:	r-release (arm64): nfl4th_1.0.7.tgz, r-oldrel (arm64): nfl4th_1.0.7.tgz, r-release (x86_64): nfl4th_1.0.7.tgz, r-oldrel (x86_64): nfl4th_1.0.7.tgz
Old sources:	nfl4th archive

Reverse dependencies:

Reverse imports:

nflverse

Linking:

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