You can edit the ROC curve by right-clicking on the graph area and selecting "Customize." The "Customize Graph" window that appears appears.
* Select [Script] from the list on the left side of the window and confirm that Y Function(...) is displayed in [Properties] as shown in the example below.
The Y function is expressed as a linear equation (in the figure below (for JMP 16 and earlier), Y is a linear equation with a slope of 1 and an intercept of 0.449494...).

In JMP 17 and later, the Pen Color is displayed as a string enclosed in double quotation marks instead of a number, as shown below.

Change color
If you are using JMP 16 or earlier, change the number "9" in the Pen Color( ) in the figure.
For JMP 17 and later, change the string "Yellow" enclosed in double quotation marks in Pen Color( ) in the figure.
The colors of each number and string are listed in "Creating Graphs with Scripts" in the JMP manual, "Scripting Guide."
Erase Lines
Once you have confirmed that the primary expression is in the Properties section as shown in the figure, click the minus button (-) in the upper left corner of the window.
When you have finished editing, click OK to exit Customize Graph.
FAQ #3802