How to measure the similarity of two time frequency diagrams

I want to measure the similarity of two time frequency diagrams;each time frequency has three outputs:

S (spectrum in form time x frequency x channels/trials if trialave=0; in the form time x frequency if trialave=1)

t (times)

f (frequencies)

Is there a predifined funcyion in atlab or i need to divide values of each by the other values?

Answer 1

[Yogesh Khurana]

xcorr can be used to find cross-correlation of two discrete time sequences. I think you can use that in funding similarities between two frequencies at different time stamps. Here is the link for that xcorr, please refer that for more information:

https://www.mathworks.com/help/matlab/ref/xcorr.html#mw_8adef77a-3f62-4b27-a3ce-7fe41e1ba9fd

Hope this helps!