The traffic accident data collected by the Kentucky State Police from 1995 to 1999.
The annual numbers of vehicle occupants involved in Kentucky accidents are classified according to 3
variables: injury, restraint usage and year.
Usage
data(kentucky)
Arguments
Format
A data frame whose columns contain:
Restraint.usage
A factor with levels: yes = restraint used, no = restraint not used
Year
1995, 1996, 1997, 1998, 1999
Freq
A numeric vector of frequencies
References
Lang JB (2005) Homogeneous linear predictor models for contingency tables.
Journal of the American Statistical Association, 100, 121-134.