| cu.summary | R Documentation |
Automobile Data from 'Consumer Reports' 1990
Description
The cu.summary data frame has 117 rows and 5 columns,
giving data on makes of cars taken from the April, 1990 issue of
Consumer Reports.
Usage
cu.summary
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 ‘Brazil’, ‘England’, ‘France’, ‘Germany’, ‘Japan’, ‘Japan/USA’, ‘Korea’, ‘Mexico’, ‘Sweden’ and ‘USA’
Reliability-
an ordered factor with levels ‘Much worse’ < ‘worse’ < ‘average’ < ‘better’ < ‘Much better’
Mileage-
fuel consumption miles per US gallon, as tested.
Type-
a factor with levels
CompactLargeMediumSmallSportyVan
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, pp. 46–47.
See Also
car.test.frame,
car90
Examples
fit <- rpart(Price ~ Mileage + Type + Country, cu.summary)
par(xpd = TRUE)
plot(fit, compress = TRUE)
text(fit, use.n = TRUE)