Taking only the first element
显示 更早的评论
I have matrix =[0,2 ;0,25 ;0,25;0,3] And I am using find function To get the index of every element The error occur when the search value is 0,25 it give an output [2,3] And I want to take only the first element of the output array Or the second element
5 个评论
KSSV
2020-5-26
Read about ind2sub and sub2ind.
Shehab Tarek
2020-5-26
Hello
This is simple, find allows you to return a certain number of values, if you only want the first then specify like this
a = find (a==0.25 , 1);
Then, you will only have the first occurrence of the value 0.25.
Hope this helps. You can read more about find here:
https://uk.mathworks.com/help/matlab/ref/find.html
Shehab Tarek
2020-5-26
Tommy
2020-5-26
To get only the nth index:
matrix = [0.2 ;0.25 ;0.25;0.3];
n = 2;
allIdx = find(matrix==0.25,n);
nIdx = allIdx(end);
回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Matrix Indexing 的更多信息
2020-5-26
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
