i have a matrix A of size 523418*2, i want to delete repeating pair?? as i explained below. any help??
1 visualizzazione (ultimi 30 giorni)
Mostra commenti meno recenti
M.Prasanna kumar
il 5 Feb 2019
Commentato: Guillaume
il 5 Feb 2019
a = [ 1 2 ; 2 1 ; 2 3 ; 5 2 ]
a =
1 2
2 1
2 3
5 2
i used following two logics,but neither gives my answer
>> uniqueresult = unique(sort(a,2), 'rows');
or
uniqueresult = unique(sort(a,2), 'rows','stable');
but this gives as following
uniqueresult =
1 2
2 3
2 5
but i want as
uniqueresult =
1 2
2 3
5 2
0 Commenti
Risposta accettata
Guillaume
il 5 Feb 2019
[~, tokeep] = unique(sort(a, 2), 'rows', 'stable'); %stable optional if you don't care about the ROW ordering
result = a(tokeep, :)
2 Commenti
Guillaume
il 5 Feb 2019
~ means don't care about that output (the first one). We only keep about the second output, which is the index of the unique rows (the one you want to keep).
Più risposte (0)
Vedere anche
Categorie
Scopri di più su Image Data Workflows 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!