How to plot line spectrum in matlab ?

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Nguyen Trong Nhan
Nguyen Trong Nhan on 9 Nov 2018
Answered: Star Strider on 9 Nov 2018
I would like to plot a spectrum (output of FFT) with a form like the provided image. How do I do it? Because the common plot in matlab is connecting of all point.

Answers (2)

madhan ravi
madhan ravi on 9 Nov 2018

Star Strider
Star Strider on 9 Nov 2018
Use the stem (link) function for the plot.
f = 0:0.1:3.5; % Create Frequency Vector
h = exp(-f) + 0.5*rand(size(f)); % Create Amplitude Vector
stem(f, h, 'Marker','none')


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