Hi,

I am performing a biomarker study and I have a certain AUC value after performing machine learning algorithm (radom forest).

Is there a way to tell how many additional samples (from control and disease) I will need if I want to, say, increase AUC from 0.77 to 0.85? (regardless of the desired power and p-value)

A realted question is whether I can know how the AUC will increase with increasing sample size?

Thanks a lot

Iddo

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