Sorting matrices in matlab
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Matija Kosak
il 5 Lug 2018
Commentato: Matija Kosak
il 5 Lug 2018
Hello,
I have a NxM matrix:
Random A for example 10x5
A =
2 8 7 1 4
9 8 8 1 7
4 8 2 8 8
3 3 2 10 6
8 7 6 7 8
1 6 5 2 3
1 4 9 8 8
7 1 8 2 10
7 8 8 2 9
6 4 1 7 1
I would like to make another matrix (B) that contains first every N, N+2, N+4...and after them N+1,N+3.. ect
B =
2 8 7 1 4
4 8 2 8 8
8 7 6 7 8
1 4 9 8 8
7 8 8 2 9
9 8 8 1 7
3 3 2 10 6
1 6 5 2 3
7 1 8 2 10
6 4 1 7 1
Thank you.
1 Commento
Stephen23
il 5 Lug 2018
Note that this is a topic of indexing/rearranging the elements, where the element values are not relevant to the new order (only their indices are). Sorting depends only on the element values (not their indices).
Risposta accettata
Stephen23
il 5 Lug 2018
>> B = A([1:2:end,2:2:end],:)
B =
2 8 7 1 4
4 8 2 8 8
8 7 6 7 8
1 4 9 8 8
7 8 8 2 9
9 8 8 1 7
3 3 2 10 6
1 6 5 2 3
7 1 8 2 10
6 4 1 7 1
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