I have a 3d matrix Z with the elements (t,f,a)
f= instantaneous frequency
a= instantaneous amplitude
(t,f,a) = at time t, the frequency is f and the amplitude is a. I want to make a continuous wavelet like plot of this or in general I want to make a colorful spectral plot out of this information, where t will be the x axis, f will be the y axis and the color of the point will depend on a.
I would be grateful if you could help me how to work this out.