Sort a matrix with another matrix
Posted
by Jacob
on Stack Overflow
See other posts from Stack Overflow
or by Jacob
Published on 2010-04-20T22:04:34Z
Indexed on
2010/04/20
22:43 UTC
Read the original article
Hit count: 318
Filed under:
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?
© Stack Overflow or respective owner
