1 Reply Latest reply: Sep 26, 2012 10:20 AM by 409233 RSS

    Decision Tree in ODM

      The sum of number of observations from each leaf node is less than the total number of observations in my decision tree model. Am I missing something here?

        • 1. Re: Decision Tree in ODM
          Some rows may not reach the leaves. If there is a NULL value for the splitter attribute in a row, then the row can stop in a branch node. When predicting such a row, we will try the surrogate (if available), but if we cannot use the surrogate, then the scoring process will stop and provide the branch node as the final, predicted node. When building, the row may not follow the surrogate path as it is not available at that phase of build.