How to use harmonic fitting method
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Hi,
Please, how can I use Harmonic fiting for the attached data to get a smooth fit.
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Sam Chak
le 20 Sep 2023
I'm interpreting your 'Harmonic' model as the 'Sum of Sine' model. If this is not the case, then you will need to create a custom nonlinear model that suits the name "Harmonic" using the fittype() function.
y = load('darta1.txt');
x = linspace(10, 60, numel(y));
[f, gof] = fit(x', y, 'sin3')
plot(f, x, y), grid on,
legend('data', 'Sum of Sine (type-3)', 'location', 'best')
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