How to find unique values in a matrix without looping over rows
2 ビュー (過去 30 日間)
古いコメントを表示
Hi,
I have an m by n matrix A that has repeat non-zero values in every row. The number of non-zero elements varies across rows. I would like to keep only unique values, but can't seem to figure out how to do that without looping. Matrix size is big, so I tried looping and it's not an option...
I tried using unique function, but can't get it to do what I need. I would appreciate any advice.
Thank you,
0 件のコメント
回答 (2 件)
Stephen23
2021 年 1 月 27 日
M = randi([0,9],3,13)
W = sort(M,2);
W(diff(W,1,2)==0) = 0;
W = sort(W,2) % optional
0 件のコメント
参考
カテゴリ
Help Center および File Exchange で Creating and Concatenating Matrices についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!