unable to calculate autocorrelation with a for loop by using xcorr

I try to calculate the autocorrelation of a signal by using xcorr in this loop:

autc = nan(size(dec.cd{1, 1}));
for k=1:size(dec.cd{1, 1},2)
[rmm, lags] =xcorr(dec.cd{1, 1}(:,k));
rmm = rmm(lags>0);
autc(:,k) = rmm;
end;

I get the error: Subscripted assignment dimension mismatch.

Any idea were the mismatch is?

Answer 1

[Honglei Chen]

Looks like it should be

rmm = rmm(lags>=0)

HTH

Answer 2

[toka55]

That's it. Thanks