# Finding the corresponding number in a matrix

1 view (last 30 days)
jason on 11 Sep 2022
Commented: Walter Roberson on 11 Sep 2022
I need to find a number in one column that corresponds with a different column. For example: [1 2 4 6 10 9; 3 5 7 2 8 6], I want the max in column 1, which is ten, I also want to find 8 in the second column.

Image Analyst on 11 Sep 2022
Did you look up max in the help?
m = [1 2 4 6 10 9; 3 5 7 2 8 6]
m = 2×6
1 2 4 6 10 9 3 5 7 2 8 6
% Find maxes in each of the 2 rows (consisting of 6 columns):
maxesOfRows = max(m, [], 2)
maxesOfRows = 2×1
10 8
% Find maxes in each of the 6 columns (consisting of 2 rows):
maxesOfColumns = max(m, [], 1)
maxesOfColumns = 1×6
3 5 7 6 10 9
##### 2 CommentsShow NoneHide None
jason on 11 Sep 2022
what if it was a 5 instead of an 8?
Walter Roberson on 11 Sep 2022
then you would use the code I suggested.

Walter Roberson on 11 Sep 2022
m = [1 2 4 6 10 9; 3 5 7 2 8 6]
[~, idx] = max(m(1,:));
m(2,idx)

### Categories

Find more on MATLAB in Help Center and File Exchange

R2022a

### Community Treasure Hunt

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

Start Hunting!