During for wavelet anaylsis my data. I found strange point in using cwt function in matlab. When I extract [wt, f] variables using this function and plot it, however, it doesn't the same as the plot which used in cwt plot.
Here is an example in mablab, Kobe data. First one is just using that command
Last one is using that commands
[wt,f,coi] = cwt(kobe,1);
I think there are some problems in frequency output of this function. Is there any methods to revise that error?