rpart (version 3.1-9)

residuals.rpart: Residuals From a Fitted Rpart Object

Description

Method for residuals for an rpart object.

Usage

## S3 method for class 'rpart':
residuals(object, type = c("usual", "pearson", "deviance"), ...)

Arguments

object

fitted model object of class "rpart".

type

Indicates the type of residual desired.

For regression or anova trees all three residual definitions reduce to y - fitted. This is the residual returned for user method trees as well.

For classification tr

...

further arguments passed to or from other methods.

Value

• vector of residuals of type type from a fitted rpart object.

References

McCullagh P. and Nelder, J. A. (1989) Generalized Linear Models. London: Chapman and Hall.

Examples

data(solder)
fit <- rpart(skips ~ Opening + Solder + Mask + PadType + Panel,
       data=solder, method='anova')
summary(residuals(fit))
plot(predict(fit),residuals(fit))