matrix step shift in each row
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HI
i have equestion about matrix shift numbers . for example i have this matrix
A =[ 1 2 3 4 5 ]
i want it to be
A =
1 2 3 4 5
5 1 2 3 4
4 5 1 2 3
3 4 5 1 2
2 3 4 5 1
thank you very much for helping
2 个评论
Rik
2021-2-23
Do the numbers in A mean anything (e.g. the number of positions the corresponding row should be shifted), or are you simply asking about a row-wise circshift?
mohammed hussein
2021-2-23
采纳的回答
This method works without a loop.
A =[ 1 2 3 4 5 ];
[X,Y]=ndgrid(1:numel(A));
X=X(end:-1:1,:);
ind=mod(X+Y,numel(A));
ind(ind==0)=numel(A);
A(ind)
更多回答（1 个）
A = [1,2,3,4,5];
B = toeplitz(A([1,end:-1:2]),A)
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