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Receiver operating characteristic- yellow line?

Greg

Community Member

Joined:

Nov 29, 2016

Just curious what the yellow line represents? Ideas? I have attached a screenshot of what graph I'm talking about. Thanks

Screenshot (1).png

 

1 REPLY
markbailey

Staff

Joined:

Jun 23, 2011

When you can see something (yellow line) but you don't know what it is, you can select Tools > Help and then click on the something (yellow line).

The yellow line is tangent to the ROC curve at the point where the vertical difference to the diagonal in sensitivity is the greatest. It locates the cutoff when the sensitivity and the specificty are equally important. You can see the numerical details if you open the ROC Table and scan the list until you find the asterisk (*).

Learn it once, use it forever!