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fft - Documentation Question - What is "L"?

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What is L?
L = 1000; % Length of signal
Is that how many data points you collected? Is that the time interval data points were collected over? Where does the 1000 come from?

Accepted Answer

David Young
David Young on 17 Feb 2015
It's the number of data points in the synthesised signal vector. It didn't come from anywhere - the person writing the documentation set it because she or he had to decide on some length for the signal.
Andrew Reibold
Andrew Reibold on 17 Feb 2015
Edited: Andrew Reibold on 17 Feb 2015
Ok, so if you had a sampling frequency of 1000pts/s, and you took data for 3 seconds, L = 1000 * 3 = 3000?

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