How do I find the cut off value from the probaility on the ROC. I had to adjust to get a better AUC. Thanks
Which a analysis platform are you using?
Do you see an outline for the ROC details? If so, it contains the probabilities.
The AUC does not depend on the a cutoff.
Here are some links to material that might help you in your ROC curve / Cut-off explorations.
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