rsq.itree:
Plots the Approximate R-Square for the Different Splits
Description
Produces 2 plots. The first plots the r-square (apparent and
apparent - from cross-validation) versus the number of splits.
The second plots the Relative Error(cross-validation) +/- 1-SE from
cross-validation versus the number of splits. Same as rsq.rpart
but does some checking to make sure warnings/error is printed
when the user attempts to call the function in cases where either
cptable=NULL or does not have the correct meaning to make the plots
useful. Identical to the rpart function.
Usage
rsq.itree(x)
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.