kentucky {hmmm} | R Documentation |
Kentucky traffic accident data
Description
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)
Format
A data frame whose columns contain:
Injury
A factor with levels:
1
= not injured;2
= possible injury;3
= nonincapacitating injury;4
= incapacitating injury;5
= killedRestraint.usage
A factor with levels:
yes
= restraint used,no
= restraint not usedYear
1995
,1996
,1997
,1998
,1999
Freq
A numeric vector of frequencies
Source
www.kentuckystatepolice.org/text/data.htm
References
Lang JB (2005) Homogeneous linear predictor models for contingency tables. Journal of the American Statistical Association, 100, 121-134.
Examples
data(kentucky)
[Package hmmm version 1.0-5 Index]