Calculate timelag using xcorr.

Hello All,

I am attempting to use the xcorr function to calculate the timelag between two curves (Zrstore and RESIDUALALL(i,:) ) for each i value.

So far I have

for i=w:1:e 
  [c,lags]=xcorr(Zrstore,RESIDUALALL(i,:));%calculate correlation and lag index for every i
  [~,iLag]=max(find(lags==0):end); %find the lag for the current 
  iLAG(i)=iLag;%store the lag for each i
  tlag=((2*pi*B)*iLAG(i))*dt;%calculate the time lag for current i
  timelag=tlag(:);%timelag at that i 
  TIMELAG(i)=timelag; %save the timelag for current i
  TIMELAGALL(:)=TIMELAG; %save the timelag for each i 
end

I think I am having an issue with storage because all my iLAG values are the same, when I know they should be different.

Does anyone have any thoughts on this?