How to extract data out of coi of wcoherence?

How to ignore data out of coi (data outside white dashed lines) and just quantify high magnitiude data discarding coi data?

Answer 1

[Yash]

Try comparing the y coordinates at a given time stamp to the values present in the coherence matrix and coi vector.

Pseudocode of the same can be like:

% Wavelet coherence and cross-spectrum
[wcoh, wcs, period, coi] = wcoherence(x, y);

% Get the size of the coherence matrix 
[rows, cols] = size(wcoh) 
 
% Identify data points outside the cone of influence 
coi_indices = zeros(rows, cols); 
for i = 1:rows 
    for j = 1:cols 
        if wcoh(i,j) < coi(j) 
            coi_indices(i, j) = 1; % Data point outside the COI (mark that index)
        end 
    end 
end

wcoherence: https://www.mathworks.com/help/wavelet/ref/wcoherence.html