Two–graph receiver operating characteristic
Michael E. Reichenheim
Instituto de Medicina Social
Universidade do
Estado do Rio de Janeiro, Brazil
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Abstract. The command roctg allows visualizing sensitivity (Se) and
specificity (Sp) curves according to the range of values of a new
diagnostic test, given a “true” state of an event, the reference
test. On request, several options for displaying Se and Sp
estimates in, or enhancements for, the graphs are also available.
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Michael E. Reichenheim
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concurrent validity, sensitivity, specificity, ROC analysis
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