MATLAB: How to save maximum value in each iteration

Question

Hi everyone,

Suppose I have a for-loop:

a=rand(1);
n(:,:,1) = zeros(1,1);
for i = 2:4
    n(:,:,i) = n(:,:,i-1) + a
    [val,idx] = max(n);
  end

How can I have a list of maximum values in each iteration, such as:

s = [2 3;3 5;4 7] % iteration "2" maximum value is "3"; iteration "3" maximum value is "5"; iteration "4" maximum value is "7"

Can anyone please help me?

Answer 1

You overwrite val and idx. To avoid that, replace

    [val,idx] = max(n);

by

    [val(i),idx(i)] = max(n);