car.test.frame             package:rpart             R Documentation

Automobile Data from 'Consumer Reports' 1990

Description:

     The 'car.test.frame' data frame has 60 rows and 8 columns, giving
     data on makes of cars taken from the April, 1990 issue of
     _Consumer Reports_. This is part of a larger dataset, some columns
     of which are given in 'cu.summary'.

Usage:

     car.test.frame

Format:

     This data frame contains the following columns:

     'Price' a numeric vector giving the list price in US dollars of a
          standard model

     'Country' of origin, a factor with levels 'France'  'Germany' 
          'Japan'  'Japan/USA'  'Korea'  'Mexico'  'Sweden'  'USA' 

     'Reliability' a numeric vector coded '1' to '5'.

     'Mileage' fuel consumption miles per US gallon, as tested. 

     'Type' a factor with levels 'Compact'  'Large'  'Medium'  'Small' 
          'Sporty'  'Van' 

     'Weight' kerb weight in pounds.

     'Disp.' the engine capacity (displacement) in litres.

     'HP' the net horsepower of the vehicle.

Source:

     _Consumer Reports_, April, 1990, pp. 235-288 quoted in

     John M. Chambers and Trevor J. Hastie eds. (1992) _Statistical
     Models in S_, Wadsworth and Brooks/Cole, Pacific Grove, CA 1992,
     pp. 46-47.

See Also:

     'cu.summary'

Examples:

     z.auto <- rpart(Mileage ~ Weight, car.test.frame)
     summary(z.auto)

