More Information

Receiver Operating Characteristic Curves (ROC)

ROC curves were originally developed to analyze noisy radio signals. Today, however they are used in many disciplines to evaluate test results. For example, ROC curves are widely used to display a plot of the true positive rate against the false positive rate for the different possible cut-points of a diagnostic test

Consider that you are evaluating a diagnostic test for lung cancer. In addition to the test result, you also have the true answer, whether the patient did or did not have lung cancer.

Aabel's implementation of ROC allows plotting: