How to sort a matrix by a predefined order

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Shannon
Shannon 2020-1-29
评论： Shannon 2020-1-29
I have a matrix, A=[1 2; 3 4; 5 6; 7 8], how to reset the order by B=[1; 4; 3; 2] to get A = [1 2; 7 8; 5 6; 3 4]?
Thanks,

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Sindar
Sindar 2020-1-29
A=[1 2; 7 8; 5 6; 3 4];
B=[1; 4; 3; 2];
A = A(B,:);

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