MATLAB: Union of cell matrix

cellmatrixunionunique

I have a cell matrix

A={[1 2 3] [2 8] [9 2 5]};

I want unique value or union of A.

The solution should be like this = [1 2 3 5 8 9]

Please give me the

unique(cell2mat(A))

You can use a real handy function called ismember() to test elements of A against elements of B. Then it's just a matter of indexing:

in = ismember(A,B);
C = nan(size(A));
C(in) = A(in);

[cell_A{:}]