%replace variable names to save typing!

[corr, lagsc]=xcorr(D20913002(:,2:65),500,'coeff');
[c, lags]=xcov(D20913002(:,2:65),100,'coeff');
figure
%for n=1:64
%subplot (8,8,n); plot(lags,c(:,64*n-8)); axis([-10 10 -1 1])
%end
%figure
for n=1:64
subplot (8,8,n); plot(lags,c(:,64*n-8)); axis([-100 100 -1 1]); grid on;
end