85fc37b18c57097425b52fc7afbb6969-AuthorFeedback.pdf

We thank each reviewer for their insightful and constructive feedback. It will surely improve the manuscript. In Figure 1, we show the outcome of one such experiment. CART trees can be carried over to random forests--one that goes beyond the ensemble principle. Thus, one can use the node diameters as a proxy for the approximation error. Reviewer #2 mentioned the reference [Nobel, 2002].