Hi Liam,
Once you have selected the "fitoptions", you can generate MATLAb code using the "File->Generate Code" in CF Tool GUI. Now, you can use this code to fit other datasets. The "fitoptions" will not change unless you change the code.
The generated code will look something like:
ft = fittype( 'poly1' );
opts = fitoptions( 'Method', 'LinearLeastSquares' );
opts.Lower = [-12 -Inf];
opts.Upper = [12 Inf];
% Fit model to data.
[fitresult, gof] = fit( xData, yData, ft, opts );
Now you can simple change "xData" and "yData" to fit new data without changing options.
I hope this helps you.
Thanks,
Tushar
