How to sort a two column vector

I need to order this two column vector (attached) in such a way that the first column (x) is ordered ascending and the second column follows this order. In other words, it is very important to me that the values in the second column remain the same for each value of x.
Thanks in advance.

4 comentarios

dpb
dpb el 2 de Jun. de 2020
s=sortrows(x);
dpb
dpb el 2 de Jun. de 2020
Of course it worked... <VERY big grin> ...
Stephen23
Stephen23 el 11 de Jun. de 2020
Original question by Jórdan Venâncio Leite on 2nd June 2020 retrieved from Google Cache (uploaded data could not be retrieved):
"How to sort a two column vector"
I need to order this two column vector (attached) in such a way that the first column (x) is ordered ascending and the second column follows this order. In other words, it is very important to me that the values in the second column remain the same for each value of x.
Thanks in advance.
Rena Berman
Rena Berman el 12 de Oct. de 2020
(Answers Dev) Restored edit

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Respuestas (2)

KSSV
KSSV el 2 de Jun. de 2020
Let A be your vector of two columns.
[val,idx] = sort(A(:,1)) ; % sort the first column
iwant = A(idx,:) % arrange A in ascending order of first column

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