CurveFinder selects the best model for your data
Using the built-in CurveFinder essentially does all of the hard work for you. You provide the data file, and CurveFinder does the rest. It sifts through every possible built-in curve fit (as well as one user-defined model), ranks the fits from best to worst, and presents you with the best one. Choosing CurveFinder from the Tools menu will invoke a dialog box that will ask you for input on which families of of regression models to search.