Want to change order with sortrows
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Kyoungtak Kim
am 31 Mär. 2020
Kommentiert: Kyoungtak Kim
am 31 Mär. 2020
Hi.
I'm making the matrix with sortrows.
Here is what I want to make it.
20 20 20
20 20 21
20 20 22
20 20 23
20 20 24
20 20 25
20 21 20
20 21 21
20 21 22
20 21 23
20 21 24
20 21 25
20 22 20.....
To do this I tried with this code:
A=[20 21 22 23 24 25];
B=[20 21 22 23 24 25];
C=[20 21 22 23 24 25];
sets = {A, B, C};
[x y z] = ndgrid(sets{:});
cartProd = [x(:) y(:) z(:)];
sorted_cartProd = sortrows(cartProd, 1);
sorted_cartProd
Then I got this.
sorted_cartProd =
20 20 20
20 21 20
20 22 20
20 23 20
20 24 20
20 25 20
20 20 21
20 21 21
20 22 21
20 23 21
20 24 21
20 25 21
20 20 22
20 21 22 ...
What I expect is start from third column but it starts to change from sedone column.
In this case, what should I do?
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Akzeptierte Antwort
Walter Roberson
am 31 Mär. 2020
Bearbeitet: Walter Roberson
am 31 Mär. 2020
sortrows(cartProd,[1 2 3])
or simply
sortrows(cartProd)
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