finding duplicate number and adjacent row value
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Suppose I have a matrix of values
v = [1 4; 1 5; 2 4; 2 4; 2 5; 2 5; 3 4; 3 7]
in column one the numbers are consecutive but with repetition, how can I find only the first numbers and corresponidng number in the other column, put them in a new matrix (v')? The new matrix should be like this from my example:
v'= [1 4; 2 4; 3 4]
I hope I am clear enough
Cheers
Sobhan
1 commentaire
Azzi Abdelmalek
le 16 Sep 2012
Modifié(e) : Azzi Abdelmalek
le 16 Sep 2012
what if v= [1 4; 1 5; 2 4; 2 4; 2 5; 2 5; 3 4; 3 7;1 5;1 6]?
Réponse acceptée
Azzi Abdelmalek
le 16 Sep 2012
v = [1 4; 1 5; 2 4; 2 4; 2 5; 2 5; 3 4; 3 7]
idx=diff(v(:,1))
v1=[];
if idx(1)==0
v1=[v1;v(1,:)]
end
for k=2:length(idx)
if idx(k)==0 & idx(k-1)~=0
v1=[v1; v(k,:)]
end
end
Plus de réponses (1)
Wayne King
le 16 Sep 2012
Modifié(e) : Wayne King
le 16 Sep 2012
[~,iv] = unique(v(:,1),'stable');
vnew = v(iv,:);
0 commentaires
Voir également
Catégories
En savoir plus sur Logical dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!