How to sort a two column vector

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Jórdan Venâncio Leite
Jórdan Venâncio Leite il 2 Giu 2020
Commentato: Rena Berman il 12 Ott 2020
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 Commenti
Stephen23
Stephen23 il 11 Giu 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 il 12 Ott 2020
(Answers Dev) Restored edit

Accedi per commentare.

Risposte (2)

dpb
dpb il 2 Giu 2020
s=sortrows(x);

KSSV
KSSV il 2 Giu 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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