rpart (version 1.0-6)

print.rpart: Print an Rpart Object

Description

This function prints an rpart object. It is a method for the generic function print of class rpart.

Usage

print.rpart(x, pretty=0, spaces=2, cp=0, digits= .Options$digits - 3, ...)

Arguments

x

fitted model object of class rpart. This is assumed to be the result of some function that produces an object with the same named components as that returned by the rpart function.

pretty

a logical or NULL denoting the extent to which factor levels in split labels will be abbreviated. A value of FALSE signifies no abbreviation. A NULL signifies using elements of letters to represent the different fa

spaces

the number of spaces to indent nodes of increasing depth.

digits

the number of digits of numbers to print.

cp

prune all nodes with a complexity less than cp from the printout.

Side Effects

A semi-graphical layout of the contents of x$frame is printed. Indentation is used to convey the tree topology. Information for each node includes the node number, split, size, deviance, and fitted value. For the "class" method, yprob is also printed.

Details

This function is a method for the generic function print for class "rpart". It can be invoked by calling print for an object of the appropriate class, or directly by calling print.rpart regardless of the class of the object.

See Also

print, rpart.object, summary.rpart, printcp

Examples

data(car.test.frame)
z.auto <- rpart(Mileage ~ Weight, car.test.frame)
z.auto
node), split, n, deviance, yval
      * denotes terminal node


1) root 60 1355.00 24.58  
  2) Weight>2567.5 45  361.20 22.47  
    4) Weight>3087.5 22   61.32 20.41 *
    5) Weight<3087.5 23  117.70 24.43 *
  3) Weight<2567.5 15  186.90 30.93 *