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%% Preserve Legacy Behavior of setdiff % Use the |'legacy'| flag to preserve the behavior of |setdiff| from R2012b % and prior releases in your code. %% % Find the difference of |A| and |B| with the current behavior. A = [3 6 2 1 5 1 1]; B = [2 4 6]; [C1,ia1] = setdiff(A,B) %% % Find the difference of |A| and |B|, and preserve the legacy behavior. [C2,ia2] = setdiff(A,B,'legacy')