Is there an error in the documentation for SPECTRUM.MTM

Victoria - 2021-03-15T10:16:01+00:00

Question: Is there an error in the documentation for SPECTRUM.MTM

Is there an error in the documentation for SPECTRUM.MTM function example in Signal Processing Toolbox 6.2.1 (R14SP1)? I open the documentation for the SPECTRUM.MTM function in the  Signal Processing Toolbox by typing     doc spectrum.mtm at the MATLAB command window.   I try the following example that is mentioned in the documentation.   Fs=1000; t=0:1/Fs:.3; x=cos(2*pi*t*200)+randn(size(t)); [e,v]=dpss(length(x),3.5); Hs=spectrum.mtm(e,v); psd(Hs,x,Fs) Rather than receiving the plot with the Power Spectral Density, I receive the following error ??? Error using ==> spectrum.abstractspectrum.psd Invalid Parameter/Value pairs.

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Expert Answer

John Michell answered . 2025-11-20

Fs=1000;

t=0:1/Fs:.3;

x=cos(2*pi*t*200)+randn(size(t));

[e,v]=dpss(length(x),3.5);

Hs=spectrum.mtm(e,v);

psd(Hs,x,'Fs',Fs);        %--->Change from documentation is here.

 

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