Place each dimension of matrix into a cell array
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Given a matrix with 3 non-singleton dimensions, how can I place each 2d matrix (along dimension 1) into an element of a cell array?
Concretely:
Given
A(:,:,1) = [1 2; 3 4] A(:,:,2) = [5 6; 7 8]
How do you construct a cell array B such that
B{1} = [1 2; 3 4] B{2} = [5 6; 7 8]
Thanks! (I can write a for loop, but that seems awfully inefficient)
0 commentaires
Réponse acceptée
Matt Fig
le 5 Avr 2011
B = squeeze(mat2cell(A,2,2,[1 1]))
This is probably quicker:
mat2cell(reshape(A,2,4),2,[2 2])
More generally:
A(:,:,1) = [1 2; 3 4;5 6;45 50];
A(:,:,2) = [7 8;9 10;11 12;13 14];
A(:,:,3) = [70 80;90 100;110 120;130 140];
S = size(A);
B = mat2cell(reshape(A,S(1),S(2)*S(3)),S(1),ones(1,S(3))*S(2))
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Matrix Indexing 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!