%% Preserve Legacy Behavior of unique
% Use the 'legacy' flag to preserve the behavior of unique from R2012b and prior releases in your code.
% Find the unique elements of A with the current behavior.

A = [9 2 9 5];
[C1, ia1, ic1] = unique(A)

%
% Find the unique elements of A, and preserve the legacy behavior.

[C2, ia2, ic2] = unique(A, 'legacy')

% Copyright 2012 The MathWorks, Inc.