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How to get the index of maximum value in each row of a matrix?

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SUNANNA S S
SUNANNA S S on 18 Apr 2017
Commented: Bryan Chambers on 19 Feb 2020
For eg, Matrix A=[1 2 3;2 0 0; 3 8 5 ]; The result I want to get is:
[p q]=1 3
2 1
3 2
I tried this
[p,q] = max(A,[],2);
but, it's not my desired output. Thanks in advance.

Answers (3)


KSSV
KSSV on 18 Apr 2017
A=[1 2 3;2 0 0; 3 8 5 ];
[val,idx] = max(A,[],2) ;
[~,j] = ind2sub(size(A(1,:)),idx) ;
i = [1:size(A,1)]' ;
[i j]
There would be more elegant solution than this.

Fahim MUMAND
Fahim MUMAND on 15 Oct 2019
What if
M =
7 8 8 2
1 8 1 7
9 4 10 4
10 7 1 10
7 10 1 1
and I want the indices of maximums (for example there are two in first row)?
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