When given a matrix with x columns, how do you multiply the first column by 1, the second column by 2, etc?
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
For example, if the matrix has 4 columns. I want to multiply the first column by 1, the second column by 2, the third column by 3 and the fourth column by 4. How can I create a function for this?
0 commentaires
Réponse acceptée
the cyclist
le 4 Oct 2014
Modifié(e) : the cyclist
le 4 Oct 2014
Use bsxfun(). For example,
A = rand(3,4);
B = bsxfun(@times,A,1:4)
More generally,
B = bsxfun(@times,A,1:size(A,2))
0 commentaires
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Operators and Elementary Operations 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!