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How pass spectogram to 3d Waterfall graph!


I am usiing spectogram from RRs readings from heart rate and i would like to use one 3d waterfall graph like the attached file image.

I was trying to do with the example '3d waterfall graph' but I dont know how to do with the input data I have.

In the HRV STFT vi, it only interpolate and get the STFT i attached the diagram block.

I want use 3 axis with Z from PSD and X time and Y Freq in Hz.

Best regards.


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