I have a 1000 element vector. I want to know if it has got any of its 2 or more elements equal. Is there a command to check this?
1 visualizzazione (ultimi 30 giorni)
Mostra commenti meno recenti
Seetha Rama Raju Sanapala
il 2 Giu 2015
Risposto: Titus Edelhofer
il 2 Giu 2015
I can write a program to check if any of the elements are identical. But wanted to know if there is a built in command and or function to check this?
0 Commenti
Risposta accettata
Titus Edelhofer
il 2 Giu 2015
Hi,
the easiest is to use unique
x = [1 1 2 3];
if numel(x)~=numel(unique(x))
disp('There are repetitive elements');
end
Note though, that this is without tolerance, i.e., 1.0 ~= 1.000000000001. Use uniquetol if you need some tolerance.
Titus
0 Commenti
Più risposte (0)
Vedere anche
Categorie
Scopri di più su Matrices and Arrays in Help Center e File Exchange
Prodotti
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!