Azzera filtri
Azzera filtri

How to sort a dot indexed array by rows based on one column

3 visualizzazioni (ultimi 30 giorni)
i made a dot indexed array called "pop" using repmat like the following
pop.X = [];
pop.V = [];
pop.F = [];
pop.pBestX = [];
pop.pBestF = [];
pop = repmat(pop, N, 1)
and wanted to sort it by rows based on the columne "pop.F"
what i mean is when pop.F(3) change position to pop.F(5) all other pop.X/pop.V in the same row will follow it
the pop array i have looks like this one
if there's a better way to make this kind of table and sort it, it would be greatly apreciated

Risposta accettata

Jan
Jan il 21 Mag 2022
[~, index] = sort([pop.F]);
pop2 = pop(index);
  2 Commenti
chaker ben salem
chaker ben salem il 21 Mag 2022
i was thinking it could be done within the same table but that works perfectly.
thank you,
Seth Furman
Seth Furman il 30 Mag 2022
It's also worth mentioning that we can convert the struct array to a table using struct2table and sort the rows using sortrows.
s = [];
s(1).a = [1 2 3 4];
s(1).b = 2;
s(2).a = [5 6 7 8];
s(2).b = 1;
t = struct2table(s)
t = 2×2 table
a b ________________ _ 1 2 3 4 2 5 6 7 8 1
sortrows(t,"b")
ans = 2×2 table
a b ________________ _ 5 6 7 8 1 1 2 3 4 2

Accedi per commentare.

Più risposte (0)

Categorie

Scopri di più su Shifting and Sorting Matrices in Help Center e File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by