Why can I not select "Exponential" option from dropdown menu in Curve Fitting app?

When I open the Curve Fitting app in MATLAB, my dropdown menu for model types does not include the full list of expected options. The only options I see are "Custom Equation", "Interpolant", "Lowess", and "Polynomial". Why can I not select something like "Exponential" for my fit?

Answer 1

[MathWorks Support Team]

To fit exponential models in the Curve Fitting app, see the documentation below:

https://www.mathworks.com/help/curvefit/exponential.html#bs1rkfh-1

The issue here is that the model type was selected before selecting the curve data. Select the x- and y-data first, then all fit types will be available in the drop down menu.