rpart (version 3.1-9)

rpart.class: Set up for `class' Method for an Rpart Model

Description

Set up for the class method for an rpart model.

Usage

rpart.class(y, offset, parms, wt)

Arguments

y

the responses.

offset

NULL: anything else is an error.

parms

a named list of parameters.

wt

case weights.

Value

• Returns a list consisting of
• y
  y as factor codes,
• parms
  a named list of parameters. This will have components prior, loss and split (and more if supplied).
• numresp
  the number of responses (one plus the number of classes).
• counts
  a vector of counts for each class.
• ylevels
  the response levels corresponding to the codes given in y.
• summary
  a function to be invoked by summary.rpart,
• text
  a function to be invoked by text.rpart.

Details

rpart.class is used only by the function rpart. It validates the input parameter list: if that is missing or NULL default values are supplied.

See Also

rpart