Removing rows with identical column value
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Hello. I have a 2 x 3 matrix.
I want to delete all rows which have the same elements in column 3.
For instance: a = [2,7; 3,4; 3,7] => [3,4]
In this case, as number 7 was repeated in row 1 and row 3, both rows are removed.
Thanks in advance.