The Differentiate Gadget provides a convenient way to calculate and display the derivative curves in the ROI (Region of Interest) range.
With this gadget, you can:
To use this tool, select Gadgets: Differentiate from the Origin menu, when a graph is active.
This dialog can be opened from the Origin menu, under Gadgets: Differentiate, or you can select Preferences from the ROI fly-out menu.
Derivative Line Color
Points of Window
Click the triangle button near the top right corner of the ROI to open a fly-out menu that offers the following options:
In the flyout menu, it will show first 20 datasets/plots. If there are more than 20 plots in the graph, you can click More... at the bottom of the list to open the Select Plot(s) dialog to select other plots.