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Sort a matrix based on one row?

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Umesh
Umesh 2013-4-22
lets say we have a 3x3 matrix as
a= 2 5 3;
2 8 1;
4 1 9;
and I want this matrix sorted based on its 2nd row in ascending order i.e.
answer= 3 2 5;
1 2 8;
9 4 1;
Thank you for any help you can offer.

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回答（1 个）

Walter Roberson
Walter Roberson 2013-4-22
[temp, order] = sort(a(2,:));
answer = a(:,order);

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