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Tom
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Function definitions are not permitted.... trying to make an FFT thing

Asked by Tom
on 26 Jan 2012
Function definitions are not permitted.... trying to make an FFT thing
I'm trying to get this working
close all
clear all
function[X,freq]=positiveFFT(x,Fs);
N=length(x);
k=0:N-1;
T=N/Fs;
freq=k/T;
X=fft(x)/N;
cutOff = ceil(N/2);
X = X(1/cutOff);
freq = freq(1:cutOff);
Any ideas?

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3 Answers

Answer by Tom
on 26 Jan 2012
 Accepted Answer

I think it might be right. Just discovered that the function line has to be the top line of code otherwise it doesn't work.

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Answer by the cyclist
on 26 Jan 2012

I think instead of this
X = X(1/cutOff)
you meant this
X = X*(1/cutOff);

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Answer by Walter Roberson
on 26 Jan 2012

You should think of "clear all" as being like trying to reprogram the fuel injector computer on a car: if you don't have years and years of training, you probably should not even be considering doing it.

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