How can I make an exponential fit with offset?
45 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Hello, since Matlab does not provide a built-in exponential fit function with an offset I would like to create one by myself. I use the Curve Fitting Tool and enter as a custom equation: f(x) = a*exp(b*x)+c However the tool is not performing a correct fit. If I use the built-in exponential fit (2 terms) I obtain a smooth fit, where the time constant of the second term is set to zero and thereby creating the correct offset. Do I have to adjust the start values or why is the custom equation not yielding a good fit? Regards
0 Kommentare
Antworten (2)
Star Strider
am 26 Jan. 2017
The easy way is to create your own anonymous function:
f = @(b,x) b(1).*exp(b(2).*x) + b(3);
4 Kommentare
Siehe auch
Kategorien
Mehr zu Interpolation finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!