To whom may it concern,
I adjusted prior probabilities accordingly since my modeling data is non-event undersampled, using SAS Eminer 14.1
I noticed that ROC curve is flattened after that. I thought that AROC should not changed by over/undersampling, so I am very confused.
Can you kindly help me to understand?
Many thanks in advance,
Kere
Can you provide some more details about your flow, specifically the model nodes you are using?
Hi!
Thank you for your kind reply. Please find the attachment containing the diagram overlook.
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