MATLAB: Setting your own start points for curve fitting

Question

I have a set of data which I am attempting to fit via a modified ("custom") two-exponential function: a*exp(b*(x-x0))+c*exp(d*(x-x0))+y0, where x0 and y0 are known. I know how to set upper and lower bounds for a,b,c,d, but how can I specify starting values (start points) for them?

Thanks in advance.

Answer 1

If you are using fit() then use the InitialPoint option as shown in https://www.mathworks.com/help/curvefit/fit.html#bto2vuv-10