# How I can make this matrix

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Sourasis Chattopadhyay 2021 年 7 月 29 日
A=[ 1 1 1 1 0 0 0 0 0 0; 1 0 0 0 1 1 1 0 0 0; 0 1 0 0 1 0 0 1 1 0; 0 0 1 0 0 1 0 1 0 1; 0 0 0 1 0 0 1 0 1 1] How I can make this matrix in a single command.
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Monika Jaskolka 2021 年 7 月 29 日
You already have it in a single command.

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### 回答 (1 件)

Shravan Kumar Vankaramoni 2021 年 8 月 2 日
Hi,
The given matrix has equal number of ones in each row or sum of elements in each row is same. If you are looking for such a matrix, it cannot be done in a single command. Refer the code below.
x = [1 0 0 1 1]; %x
n = numel(x); %how many x?
arow = x(randperm(n));
shiftvals = randperm(n) - 1;
p = zeros(n, n);
for K = 1 : n
p(K,:) = circshift(arow, [0 shiftvals(K)]);
end

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