This repo contains preliminary analyses for era-adjusted statistics for players in the Negro Leagues (1920–1948).
This is the first public implementation of Full House Modeling for Negro League era-adjusted baseball statistics.
Negro League statistics are notoriously difficult to compare with MLB contemporaries due to incomplete records and differing competitive environments. By constructing a reproducible estimate of the Negro League eligible population and applying Full House Modeling, this project makes cross-era comparisons on a fairer footing.
The approach is to use Full House Modeling to era-adjust batting and pitching statistics for players in the Negro League using a corresponding talent pool estimate for this league. This requires additional demographic considerations, which are documented in the repository.
Preliminary results for batters are displayed here:
Authors: Shen Yan, Adrian Burgos Jr., Christopher Kinson, Jun Hee Kim, and Daniel J. Eck
Version: v0.1.0
First commit: 2023-10-03 (commit d71ecb4)
License: LICENSE.md
Yan, Shen, Adrian Burgos Jr., Christopher Kinson, Jun Hee Kim, and Daniel J. Eck. era_adjustment_negro v0.1.0 (2025). https://github.com/yanshenlmx/era_adjustment_negro
Shen Yan, Adrian Burgos Jr., Christopher Kinson, and Daniel J. Eck (2025). Comparing baseball players across eras via novel Full House Modeling. Annals of Applied Statistics, 19(2): 1778-1799. DOI: 10.1214/24-AOAS1992.