How to iterate through matrix with rows and columns changing by the same value?

24 views (last 30 days)
Hello, All! I have 3x3 matrix A:
A=[2 3 7;5 6 8;1 9 3]
I want to make a 3x1 matrix B, which will consist of the maximum value of each column of matrix A. Here is my loop:
for row=1:size(A,1)
for col=1:size(A,2)
B(row,1)=max(A(:,col))
end
end
The code does not work and if I debug, I see that when I am iterating through loops:
The first iteration:
B(1,1)=max(A(:,1)), which is fine
The second iteration:
B(1,1)=max(A(:,2)), which is not fine, as the row for B did not change from 1 to 2.
Question:
How to change my code? Is there a way to iterate through two for loops by changing rows and columns by the same value?

Accepted Answer

Andrei Bobrov
Andrei Bobrov on 4 Aug 2017
Edited: Andrei Bobrov on 4 Aug 2017
B = max(A)';
or
B = zeros(size(A,2),1);
for col=1:size(A,2)
B(col,1)=max(A(:,col));
end

More Answers (0)

Categories

Find more on Loops and Conditional Statements 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!