Decision Tree Induction

Question

JMP V.15.02Pro

Hello,

I have used a Decision Tree Induction analysis, and I have a quick question.  I understand that the Log Worth is related to the predictability of the analysis, but what does the 'Difference' value represent?

Thanks in advance,

PhDer

dale_lehman · Accepted Answer

With a continuous response variable, the Difference appears to be the difference between the 2 means for the next split in the tree.  I don't know why that calculation is placed in the point in the tree above where the split is done, but if you look at the splits, you will see that each split shows the mean for each branch and the difference between these means appears with the point of the tree just above that split.

PhDer · Accepted Answer

dale_leham,

Thanks very much for your help!