Taking only the first element

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

[KSSV]

Read about ind2sub and sub2ind.

[Shehab Tarek]

I just want to take the first  index

[Constantino Carlos Reyes-Aldasoro]

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]

Thank you 🙏

[Tommy]

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);