lambert leong

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TLDR

  • NRI looks at the new models ability to correctly reclassify cancers and benigns and should be used alongside AUC
  • IDI quantifies improvement of the slopes of the discrimination curves and plotting it can provide information AUC alone does not afford.
  • Code for the following example and useful AUC, NRI, IDI functions can be found at github.

Area Under the Curve (AUC)

In machine learning and diagnostic medicine the area under the receiver operating characteristic (ROC) curve or AUC is a common metric used…

lambert leong

Data scientist, cancer researcher, and creator living in Hawaii

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