What would be more useful in a given context or scenario?
I know the [B]absolute [/B]band powers are just the sum of the powers for the frequencies in a particular band of the spectrum. The [B]relative [/B]band powers are the sum of the powers in a certain frequency band divided by the sum of the powers in all the other frequency bands. So the relative band powers represent how much of the signal (i.e. a percentage) is made up of oscillations in a particular band.
I still don’t know what that means though, they both look the same and are moving the same.