Decision Tree EMiner

[jaycette]

Hi,

I'm trying to build a decision tree in Enterprise Miner, but the splits aren't what I was expecting. I believe this is because my target variable is a ratio that ideally I want to be close to 1, but the tree is trying to find how to maximize the target. How can I change that to help me find more appropriate splits?

The ratio is simply variableA/variable B and was calculated in excel before inputting the data into sas, but I was also wondering if there was a way to have sas create the ratio and then use that as a target.

Thanks!

[WendyCzika]

I'm not sure I understand your statement: "I believe this is because my target variable is a ratio that ideally I want to be close to 1, but the tree is trying to find how to maximize the target."   The Decision Tree is trying to come up with rules based on your inputs for predicting your target, that is, the splitting rules that create the most significant difference in the target values of the resulting branches.