summary.rpart
Summarize a Fitted Rpart Object
Description
Returns a detailed listing of a fitted rpart
object.
Usage
## S3 method for class 'rpart' summary(object, cp = 0, digits = getOption("digits"), file, ...)
Arguments
object | fitted model object of class |
digits | Number of significant digits to be used in the result. |
cp | trim nodes with a complexity of less than |
file | write the output to a given file name. (Full listings of a tree are often quite long). |
... | arguments to be passed to or from other methods. |
Details
This function is a method for the generic function summary for class "rpart"
. It can be invoked by calling summary
for an object of the appropriate class, or directly by calling summary.rpart
regardless of the class of the object.
It prints the call, the table shown by printcp
, the variable importance (summing to 100) and details for each node (the details depending on the type of tree).
See Also
summary
, rpart.object
, printcp
.
Examples
## a regression tree z.auto <- rpart(Mileage ~ Weight, car.test.frame) summary(z.auto) ## a classification tree with multiple variables and surrogate splits. summary(rpart(Kyphosis ~ Age + Number + Start, data = kyphosis))
Copyright (©) 1999–2012 R Foundation for Statistical Computing.
Licensed under the GNU General Public License.