Hello again to everyone,
Sorry for bothering you again, but I have a further question on Continuos Wavelet Transform (CWT). From theory I know that doing a CWT of a real signal by means of a real wavelet leads to real wavelet coefficients. Is it correct? Therefore the question is, why if I use cwtft specifying as an input 'morl' which is the wave name for the real (valued) Morlet function, the function turns out complex valued wavelet coefficients? The point is that when I use the Mexican Hat wavelet the coefficients result real, according to theory. Why with 'morl' the coefficients are complex?
Thanks in advance for the help.