how to sum multiple matrics inside a cell array?

2 visualizaciones (últimos 30 días)
Matlab_Student
Matlab_Student el 11 de Feb. de 2018
Editada: Mohammod Minhajur Rahman el 17 de Nov. de 2018
for example:
A = cell(1,3);
A{1} = [1];
A{2} = [1];
A{3} = [1];
What's a quick command to sum these cell elements to return [3]? plus() only works for size of two.
  1 comentario
Stephen23
Stephen23 el 11 de Feb. de 2018
Why store numeric scalars in a cell array anyway? The efficient solution to this is to convert to a numeric vector and then use the inbuilt sum, so why not skip the middle steps of using the cell array and simply store the data in a numeric array?

Iniciar sesión para comentar.

Respuesta aceptada

James Tursa
James Tursa el 11 de Feb. de 2018
result = sum([A{:}]);
  2 comentarios
Stephen23
Stephen23 el 11 de Feb. de 2018
+1 neat and efficient
Mohammod Minhajur Rahman
Mohammod Minhajur Rahman el 17 de Nov. de 2018
Editada: Mohammod Minhajur Rahman el 17 de Nov. de 2018
Could you please suggest how it might work for matrices? I mean, if A{1} = magic(150); A{2} = magic(150); A{3} = magic(150); and the result should be a matrix of 150x150. Also, magic(150) is a sparse matrix?

Iniciar sesión para comentar.

Más respuestas (0)

Categorías

Más información sobre Logical en Help Center y File Exchange.

Productos

Community Treasure Hunt

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

Start Hunting!

Translated by