As a part of my learning experience in regards to wavelet analysis using MATLAB, I see that users don't have to explicitly define the scaling parameter of the wavelet. Instead the scaling parameter is computed automatically. In fact when I check the documentation of continuous wavelet transform (cwt), I see this sentence, "The minimum and maximum scales are determined automatically based on the wavelet's energy spread in frequency and time". I am having hard time understanding this line. It will be great if someone could explain this process or point out to some references for better understanding.
