print.itree: Print an itree Object

In itree: Tools for classification and regression trees, with an emphasis on interpretability.

Description

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

Usage

## S3 method for class 'itree'
print(x, minlength=0, spaces=2, cp, digits= getOption("digits"), ...)

Arguments

x	fitted model object of class itree. This is assumed to be the result of some function that produces an object with the same named components as that returned by the itree function.
minlength	Controls the abbreviation of labels: see labels.itree.
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. Ignored if unspecified.
...	arguments to be passed to or from other methods.

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, the class probabilities are also printed.

See Also

print, itree.object, summary.itree, printcp

Examples

#rpart examples:
z.auto <- itree(Mileage ~ Weight, car.test.frame)
z.auto
## Not run: node), split, n, deviance, yval
      * denotes terminal node

 1) root 60 1354.58300 24.58333  
   2) Weight>=2567.5 45  361.20000 22.46667  
     4) Weight>=3087.5 22   61.31818 20.40909 *
     5) Weight<3087.5 23  117.65220 24.43478  
      10) Weight>=2747.5 15   60.40000 23.80000 *
      11) Weight<2747.5 8   39.87500 25.62500 *
   3) Weight<2567.5 15  186.93330 30.93333 *

## End(Not run)

itree documentation built on May 2, 2019, 7:25 a.m.