How can i delete repeated rows?

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Ahmed Hamed
Ahmed Hamed 2016-8-3
编辑： Guillaume 2016-8-3
I have a matrix A as follows
A = 1,1,2,3,4
2,1,2,3,4
I'd like to consider that the two rows are identical as the firs column only describes the index, so the output should like
A = 1,1,2,3,4
or
A= 2,1,2,3,4
when I make use of unique(A,'rows') it doesn't consider the two rows are identical
Any help, please.

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Guillaume
Guillaume 2016-8-3
编辑：Guillaume 2016-8-3
Use the second return value of unique:
[~, rowstokeep] = unique(A(:, 2:end), 'rows');
newA = A(rowstokeep, :)

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