The Goal Page

The Goal page is the first page of the Fitting Function Builder. You can choose to create or edit a User-defined fitting function in this page. Depending upon the chosen goal, subsequent pages of the Builder will display some minor differences.

Dialog Box Controls

Create a New Function Select the goal to create a new function. The function will be under the User Files Folder\ fitfunc folder.
Edit a User-defined Function Select this goal to edit a user-defined function. If there are user-defined functions under the User Files Folder\ fitfunc folder, the tool will generate a drop-down list with all the available user-defined function as options below the Edit a User-defined Function to allow you select one of them to edit. If there is no user-defined function in the folder, it will through a message to remind you that No User-defined functions found! Please create one first.

The Fitting Function Library App allows you to look for additional fitting functions, available for download from the OriginLab website. You can (1) download the App from the OriginLab website or (2) you can install it directly by pressing F10, searching on "function" and clicking the Download and Install button.