How to sort vector with respect to another vector

Question

Vishal Sharma 2017-2-3

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/323216-how-to-sort-vector-with-respect-to-another-vector

评论： Matin Salehi 2019-7-12

采纳的回答： Guillaume

I have one vector

A= [11; 12; 13; 21; 22; 31] A = 11 12 13 21 22 31

And another vector B = [5; 2; 1; 3; 4; 6] B = 5 2 1 3 4 6

I want results in new matrix with rankings as per vector B and values of A vector, so that result shall be 22 12 11 13 21 31

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Answer 1

Guillaume 2017-2-3

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https://ww2.mathworks.cn/matlabcentral/answers/323216-how-to-sort-vector-with-respect-to-another-vector#answer_253212

在 MATLAB Online 中打开

What you're asking is simple indexing:

A = [11; 12; 13; 21; 22; 31];
B = [5; 2; 1; 3; 4; 6]   
result = A(B)

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Matin Salehi 2019-7-12

hi, I would b grateful if you help me regarding this question. how can I rank a matrix for example A = [ 12 14 16;15 18 20; 12 78 98] with a vector B = [2 1 3]

that the answer be like : the scond column of A come first, and the first column of A move to second column, and then 3? like C= [ 14 12 16; 18 15 20; 68 12 98]

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