How KNIME calculate the Area Under an ROC Curve (AUC_ROC)?


I would like to know which method the KNIME implements to calculate the area under a ROC curve?

Thanks for the help!

I didn't know that there is more than one method... "Our" method is integrating the area under the curve.

Thanks Thors... is there any example workflow in Knime uploaded or in the Examples? see how to calculate it. 





Thanks Thors for the answer.

So, I think that is the Trapezoidal integration. Is this?

There are others numerical integrations. You can see here (


Yes, we are applying trapezoidal integration. Since the curve isn't a "smooth" curve anyway but has discrete steps this is the natural way to calculate the area.

Thanks Thor for the answer.