How can I plot spectrogram from discrete data?

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Frely Rahayu 2017-1-26

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https://ww2.mathworks.cn/matlabcentral/answers/321998-how-can-i-plot-spectrogram-from-discrete-data

回答： Bjorn Gustavsson 2017-1-26

I have opening valve data and want to analyze my data in spectrogram but don't know how to plot it

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Answer 1

Bjorn Gustavsson 2017-1-26

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https://ww2.mathworks.cn/matlabcentral/answers/321998-how-can-i-plot-spectrogram-from-discrete-data#answer_252085

在 MATLAB Online 中打开

Have a look at the documentation for the matlab function spectrogram:

helpwin spectrogram

From the question it seems that you're relatively new to matlab, if so I suggest you look around in the documentation a little bit just to get familiar with what's available and where to find stuff. Also have a look at the documentation for the function lookfor.

HTH