O recursive binarvr splitting is used to consider everyr possible partition of the feature space into J boxes to nd the partition that minimizes the R55; O the prediction of the response in box] is the mean of the responses of observations that fall into box j. O the boxes are chosen so as to distribute the observations as evenlyr between boxes as possible. O the prediction of the response in box] is a majority vote of the response classes of observations that fall into box j