| cu.summary | R Documentation |
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.
cu.summary
This data frame contains the following columns:
Pricea numeric vector giving the list price in US dollars of a standard model
Countryof origin, a factor with levels ‘Brazil’, ‘England’, ‘France’, ‘Germany’, ‘Japan’, ‘Japan/USA’, ‘Korea’, ‘Mexico’, ‘Sweden’ and ‘USA’
Reliabilityan ordered factor with levels ‘Much worse’ < ‘worse’ < ‘average’ < ‘better’ < ‘Much better’
Mileagefuel consumption miles per US gallon, as tested.
Typea factor with levels
Compact
Large
Medium
Small
Sporty
Van
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.
car.test.frame,
car90
fit <- rpart(Price ~ Mileage + Type + Country, cu.summary)
par(xpd = TRUE)
plot(fit, compress = TRUE)
text(fit, use.n = TRUE)