Hi,
As per my understanding you want to change the default value of the Morelet wavelet's central frequency "w0" from "6" to "20".
Referring to the MATLAB documentation of "wcoherence" function, it does not allow direct modification of "w0".
As a possible workaround you can design the wavelet transform using "cwtft" function and then compute coherence. Please refer to the following code snippet as an example:
S = struct('name','morl', 'param', 20); % Custom Morelet wavelet with ω0 = 20
cwtStruct = cwtft({signal, 'scales', 1:64, 'wavelet', S});
You can then perform the wavelet transform separately for both the signals and then use the outputs to compute coherence.
Please refer to the following Mathworks documentation of the "cwtft" function for more information:
Hope this helps!
