Overlapping separate ROC Curves

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Overlapping separate ROC Curves

Michael Kruger
Does anyone know a way of creating a single ROC curve plot using
separate cases for each curve? I know that you can plot multiple curves
on the same plot if you use the same casees for each curve but different
test variables. What I need to do is put two or more different groups of
caseson the same plot using the same test variable for all of them. Any
help on this question would be appreicated.

--
Michael Kruger
"A True Prince"
Statistical Analyst
C.S. Mott Center
Dept. of OB/GYN
Wayne State University School of Medicine
(313)-577-1794