Difference between Shannon entropy and shannon entropy from wavelet packet?
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I wanted to calculate the shannon entropy of a signal and I used the command
I thought this function used the following formula:
but in the Matlab help the formula applied is:
I don't understand where does this formula come from and what's the connection with the first one.
John Navarro on 29 Nov 2021
I would guess it is because the first equation is evaluating the Shannon entropy of the signal as a series, while the second is evaluating the entropy of the energy of the signal (energy is the square value)