How to remove all the rows if first two columns has same number?
1 view (last 30 days)
Show older comments
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
0 Comments
Accepted Answer
Guillaume
on 12 Jul 2019
Two of many possible ways:
yourmatrix(diff(yourmatrix(:, [1 2]), [], 2) == 0 , :) = [];
yourmatrix(yourmatrix(:, 1) == yourmatrix(:, 2), :) = [];
0 Comments
More Answers (0)
See Also
Categories
Find more on Portfolio Optimization and Asset Allocation in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!