A data frame with 93 observations on the following 10 variables.
playerID
Manager (player) ID code
yearID
Year
teamID
Team; a factor
lgID
League; a factor with levels ALNL
inseason
Managerial order. One if the individual managed the team
the entire year. Otherwise denotes where the manager appeared
in the managerial order (1 for first manager, 2 for second, etc.).
A factor with levels 12345