Dataset: race7579.dat Source: www.nascar.com Description: List of all Nascar Winston Cup races from 1975-1979, including track length, laps, number of drivers, caution flags, lead changes and track name. Variables/Columns Series Race 6-8 year 13-16 season race 23-24 # of drivers 31-32 track length 34-40 /* miles */ # of laps 46-48 road track dummy 56 /* 1=Yes, 0=No */ caution flags 63-64 lead changes 71-72 track id 81-83 track name 89-122