Cross-correlation plots and find the median

I have 2 sets of data and I want to find the cross-correlation between them and plot it out. I want to first plot each of the trace and then find the median cross-correlation. However, I have not been able to do so. Here is my code.

figure
for i=1:26
    subplot(3,9,i)
    [c,lags] = xcorr(dataA(i), dataB(i));
    stem(lags,c)
    xlabel('lag')
    ylabel('Cross-correlation')
end

Answer 1

[Subhadeep Koley]

I assume that you are trying to find the median value for each of the cross-correlation vector and plot them along with the cross-correlation plot. The below code might help.

clear;clc;close all;
load data.mat
figure('units','normalized','outerposition',[0 0 1 1])
for i=1:26
    subplot(3,9,i)
    [c,lags] = xcorr(cell2mat(dataA(i)), cell2mat(dataB(i)));
    c_median = median(c); % Finding the median correlation
    stem(lags,c);
    hold on;
    plot(c_median,'ro','MarkerSize',8,'MarkerFaceColor','red')
    xlabel('lag')
    ylabel('Cross-correlation')
    legend('Correlation','Median')
end