How can I use plus operation with more than 2 array

3 vues (au cours des 30 derniers jours)
Wongnarin Kompor
Wongnarin Kompor le 1 Fév 2016
Commenté : David Young le 3 Fév 2016
I try to plus with many array. For example plus(A,B,C,D,...Z) with A = [1,2,3:4,1,2] B = [3,5,6,:5,6,7] and so on and I've got this message
"??? Error using ==> plus Too many input arguments."
How can I solve this? Thank you in advance for your answer
  2 commentaires
Stephen23
Stephen23 le 1 Fév 2016
plus is a binary operator, the documentation shows this and does not state otherwise. You will need to perform it multiple times.
Wongnarin Kompor
Wongnarin Kompor le 2 Fév 2016
Thank you for suggest me

Connectez-vous pour commenter.

Réponse acceptée

Walter Roberson
Walter Roberson le 1 Fév 2016
There is no way of doing that in MATLAB: you need to do a series of binary plus operations, A+B+C+....
You may wish to consider:
nd = ndims(A);
sum( cat(nd+1, A, B, C, .... Z), nd+1 )
Note: this code will not work if any of the elements are scalars, unless they are all scalars. All of the matrices need to be the same size for this code to work.
  2 commentaires
Wongnarin Kompor
Wongnarin Kompor le 2 Fév 2016
Thank you very much
David Young
David Young le 3 Fév 2016
If the arrays are large, this makes extravagant use of memory.

Connectez-vous pour commenter.

Plus de réponses (1)

David Young
David Young le 1 Fév 2016
Either use
A + B + C + D + Z
or
plus(A, plus(B, plus(C, plus(D, Z))))

Catégories

En savoir plus sur Parallel Computing dans Help Center et File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by