Choice of transportation mode by gender.
A data frame with 10 observations on the following 4 variables.
a numeric vector needed for identifying a tree in the MPT algorithm
a numeric vector taking the value
1 if male and
0 if female
a factor denoting the transport mode choice, where
D denotes driving one's own vehicle,
F denotes getting a ride with a friend,
O denotes other,
P denotes using public transport, and
W denotes walking
a numeric vector recording the frequency with which each transport mode is chosen
The data are extracted from the 1991-1994 Drug Abuse Treatment Outcome Study (2010) data (DATOS).
United States Department of Health and Human Services and National Institute of Health and National Institute on Drug Abuse (2010). Drug Abuse Treatment Outcome Study, 1991-1994. Ann Arbor, MI: Inter-university Consortium for Political and Social Research.