- http://www.nflpenalties.com/
- http://www.pro-football-reference.com/officials
- https://en.wikipedia.org/wiki/List_of_current_National_Football_League_stadiums
Data primarily stored in csv files (for ease of analysis with R and/or Python), imported into Pandas dataframes, and displayed in matplotlib.
- Organize directory structure
- More systematic data analysis of individual referees, players, and teams
- Machine-learning algorithms (via scikit-learn?) to predict penalties given variety of factors