How do I add R squared to control the Partition in the decision tree code?
In the case of Boston housing.jmp, adjust the parameters of "Minimum Size Split" and "Split Best" in the JSL code to control the automatic Partition of decision tree.
Partition(
Y( :mvalue ),
X( :crim, :zn, :indus, :chas, :nox, :rooms, :age, :distance, :radial, :tax, :pt, :b, :lstat ),
Validation Portion( 0.3 ),
Minimum Size Split( 2 ),
Split Best( 1000 )
);
However, the R square of the validation...