Create a matrix (24,72) using 'for' loop.

How can I use the loop 'for' or other, to produce the same matrix (24,72) depicted in the figure? kind regards.

Answer 1

[Joseph Cheng]

since it is a nice simple pattern of (zeros for columns that are a multiple of 3) then:

 DesiredResult = ones(24,72);
 DesiredResult(:,3:3:end)=0;

[ET-TAOUSSI mehdi]

Nice solution thank you Joseph Cheng.

Answer 2

[Brendan Hamm]

You could do this with a loop:

A = ones(24,72);
for k = 1:72
    if rem(k,3) == 0
        A(:,k) = 0;
    end
end

 or you could do this in one line:

A = repmat([1 1 0],24,72/3);

The latter is much faster and more elegant.

[ET-TAOUSSI mehdi]

the last is a good solution, thank you Brendan Hamm.