Adding cell array entries

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AA
AA le 23 Août 2020
Commenté : madhan ravi le 24 Août 2020
Suppose you have a 162*24 cell array called CC and each cell array entry consist of a matrix.
How would you add CC{1,1}+CC{2,1}+CC {3,1}.....CC{162,1}
and then to the same for the remaining 23 columns.
I dont need the sum but all matrices within each cell entry have to be added.
Thanks

Réponse acceptée

Walter Roberson
Walter Roberson le 23 Août 2020
nd = ndims(CC{1,1});
sol = sum(cat(ndims+1, CC{:,1}),ndims+1);
There are also approaches using the more obscure fold() operation.
  4 commentaires
AA
AA le 24 Août 2020
I get an error Not enough input arguments and and also an unspecific error in the second line. Maybe the nd variable is missing in the second line?
madhan ravi
madhan ravi le 24 Août 2020
nd = ndims(CC{1,1});
sol = sum(cat(nd+1, CC{:,1}),nd+1);

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Plus de réponses (1)

Sara Boznik
Sara Boznik le 23 Août 2020
for i=1:24
sol=sum((CC(:,i)))
end
  1 commentaire
Walter Roberson
Walter Roberson le 23 Août 2020
No, not for a cell array. sum() does not apply to cell arrays.
Also, you are overwriting all of sol each iteration.

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