How to plot line spectrum in matlab ?

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.

Answer 1

[madhan ravi]

FFT

Answer 2

[Star Strider]

Use the stem (link) function for the plot.

Example —

f = 0:0.1:3.5;                                  % Create Frequency Vector
h = exp(-f) + 0.5*rand(size(f));                % Create Amplitude Vector

figure
stem(f, h, 'Marker','none')