Ordering of the columns of an array according to a given line
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Dear all, I have the following database:
15 50 15 30 20
1 3 5 2 4
However, I need to sort as follows:
15 30 50 20 15
1 2 3 4 5
Can anyone help me? Thanks a lot. Marcus Vinicius
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Risposte (2)
Andrei Bobrov
il 24 Set 2012
Modificato: Andrei Bobrov
il 24 Set 2012
A = [15 50 15 30 20
1 3 5 2 4]; The initial array
[ii ii] = sort(A(2,:));
out = A(:,ii);
or
out = sortrows(A',2)';
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Rodrigo
il 24 Set 2012
It seems like you want to sort by the value of the second row. To do this you first find the order you want:
[~,ind]=sort(A(2,:));
where A is the array containing your data. Then you produce the sorted array by calling the index:
B=A(:,ind);
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