I have matrix like this. I wants to remove the all the rows which contain same numbers in first two columns
1 1 1 200 2
1 2 2 200 2
1 3 3 200 2
1 4 4 200 2
2 1 1 200 2
2 2 2 200 2
2 3 3 200 2
2 4 4 200 2
3 1 1 200 2
3 2 2 200 2
3 3 3 200 2
3 4 4 200 2
4 1 1 200 2
4 2 2 200 2
4 3 3 200 2
4 4 4 200 2
for example
1 2 2 200 2
1 3 3 200 2
1 4 4 200 2
2 1 1 200 2
2 3 3 200 2
2 4 4 200 2
3 1 1 200 2
3 2 2 200 2
3 4 4 200 2
4 1 1 200 2
4 2 2 200 2
4 3 3 200 2
Best Answer