how do i find matching row from an array?
显示 更早的评论
I have an array and i want to find matching elements of a variable from the array how do i do that? p = [1 2;3 1]; c = [3 1] if (p == c) doesn't seem to work and i get an error saying matrix dimentions must agree
采纳的回答
Star Strider
2015-3-16
Use the ismember function with the 'rows' option:
p = [1 2;3 1];
c = [3 1];
[q, idx] = ismember(c, p, 'rows');
The ‘idx’ variable contains the row of ‘p’ that matches the data in ‘c’. The ‘q’ variable tells you if there is a match somewhere (1) or not (0).
2 个评论
Wesley
2025-4-21
Thanks for your answer! It helped me in a pinch!
Star Strider
2025-4-21
@Wesley — My pleasure!
A Vote would be appreciated!
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Operators and Elementary Operations 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
