Sort a matrix with another matrix
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by Jacob
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Published on 2010-04-20T22:04:34Z
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2010/04/20
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matlab
Suppose I have a matrix A and I sort the rows of this matrix. How do I replicate the same ordering on a matrix B (same size of course)?
E.g.
A = rand(3,4);
[val ind] = sort(A,2);
B = rand(3,4);
%// Reorder the elements of B according the reordering of A
This is the best I've come up with
m = size(A,1);
B = B(bsxfun(@plus,(ind-1)*m,(1:m)'));
Out of curiosity, any alternatives?
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