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

Question

0 个投票

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

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Answer 1

Joseph Cheng 2016-1-15

编辑：Joseph Cheng 2016-1-15

2 个投票

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;

Nice solution thank you Joseph Cheng.

Answer 2

Brendan Hamm 2016-1-15

1 个投票

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.

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