Use case question

[LobsterMan123]

Would you please tell me if by calculating the "only positive absolute values" from JDSP when doing the Fourier transform, if this is sufficient, for a physical system I have that is oscillating back and forth, to obtain the constituent frequencies of oscillations in my system?

The code I'm using to calculate the only positive absolute values is below:

_Fourier ft = new DiscreteFourier(signal); // OR _Fourier ft = new FastFourier(signal); ft.transform(); boolean onlyPositive = true; double[] out = ft.getMagnitude(onlyPositive);

Thanks.

LM

[psambit9791]

@LobsterMan123 Should be fine.