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How can I use fminsearch() to apply a sinc function (sin(x)/x) fit on my data?

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Asser Abdelgawad
Asser Abdelgawad 2022-6-20
编辑： Sam Chak 2022-6-20
I am aware that fminsearch can be used to achieve this, but it is not intuitive to me how it can be done. Can someone provide an example? T

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Sam Chak
Sam Chak 2022-6-20
编辑：Sam Chak 2022-6-20
@Asser Abdelgawad
How about considering the nonlinear least-squares curve fitting lsqnonlin?
fun = @(p) p(1)*sinc(p(2)*(xdata - p(3))) - ydata;
p0 = [p1, p2, p3];
p = lsqnonlin(fun, p0)
plot(xdata, ydata, 'r-', xdata, p(1)*sinc(p(2)*(xdata - p(3))), 'b-')

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