I have a nonlinear function coded in Orign C as a .fdf file. It is a peak function, and I would like to make multiple peaks. However, the "Replica" otion on the menu (as well as the button in the toolbar) is not available when I select my custom function. What can I do to be able tu fit my function multiple times on a dataset?
I don't think replicas can be used with user-defined fitting functions. Afraid you'll have to create separate versions of your function for multiple peaks... MyFunction_1pk, MyFunction_2pk, MyFunction_3pk, etc.