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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.

USAGE:

rsq.arbor(x)

REQUIRED ARGUMENTS:

x
fitted model object of class arbor. This is assumed to be the result of some function that produces an object with the same named components as that returned by the arbor function.

SIDE EFFECTS:

Two plots are produced.

NOTE:

The labels are only appropriate for the "anova" method.

EXAMPLES:

z.auto <- arbor(Mileage ~ Weight, car.test.frame)
rsq.arbor(z.auto)