repeating elements of a vector in a certain manner
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Mnr
le 23 Fév 2016
Réponse apportée : Star Strider
le 23 Fév 2016
Hello all, I have a vector A of length n. I would like to create a new vector B which contains each element of A repeated m times; i.e. length of B is mxn. For example, let A=[2 4 5 7 8]; m=3; then, B=[2 2 2 4 4 4 5 5 5 7 7 7 8 8 8]; What is the fastest way of doing that? Thanks!
0 commentaires
Réponse acceptée
Star Strider
le 23 Fév 2016
Two options, both producing the same output:
A=[2 4 5 7 8];
B1 = repelem(A,3) % Introduced in R2015a
B2 = reshape(repmat(A, 3, 1), [], 1)'
B1 =
2 2 2 4 4 4 5 5 5 7 7 7 8 8 8
B2 =
2 2 2 4 4 4 5 5 5 7 7 7 8 8 8
0 commentaires
Plus de réponses (1)
Voir également
Catégories
En savoir plus sur Shifting and Sorting Matrices 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!