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02-25-2015 07:15 AM

Hello,

in an enterprise miner project we are analyzing a sample which has much more cases than reality.

Therefore we want to use prior probabilities.

In our project we are using the following nodes: sample, data partition, decision tree and model comparison.

Is it enough to define the prior probabilities in the first node, the sample node?

Does the decision tree node later on use the prior probabilities defined in the sample node?

Or do we have to define the prior probabilities in every node?

Thanks for your help!

badikidiki

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02-25-2015 10:15 AM

Hi,

Check out this tip, we do something similar to what you are trying to do.

https://communities.sas.com/docs/DOC-10220

I hope it helps,

Miguel

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02-27-2015 11:11 AM

Hi Miguel,

thank you very much for your answer!

I will try to use the decision node.

But I wonder what the Miner does without a decision node.

My first try was to define prior probabilities in my sample node.

After that I ran a data partition, different decision trees and a model comparison node.

Do prior probabilities defined in the sample node - without having a decision node - effect the following nodes or not?

badikidiki