Getting the entry value (i,j) for the minimum value of reach row of a matrix

3 views (last 30 days)
Suppose I have a matrix
A = 3×3
11 13 15
12 14 16
32 18 21
How do I get the output (1,1) (2,1) and (1,3) which indicate the position of the minimum value of each row.

Accepted Answer

Voss
Voss on 9 Apr 2022
A=[11 13 15
12 14 16
32 18 21];
[minrow,idx] = min(A,[],2) % min value of each row, with column index
minrow = 3×1
11 12 18
idx = 3×1
1 1 2
result = [(1:size(A,1)).' idx] % 18 is at (3,2) not (1,3)
result = 3×2
1 1 2 1 3 2

More Answers (1)

Arif Hoq
Arif Hoq on 9 Apr 2022
may be you are looking for this:
A=[11 13 15
12 14 16
32 18 21];
mincol=min(A) % min value of each column
mincol = 1×3
11 13 15
minrow= min(A,[],2) % min value of each row
minrow = 3×1
11 12 18
  3 Comments

Sign in to comment.

Categories

Find more on Resizing and Reshaping Matrices in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by