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Adding cell array entries

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AA
AA il 23 Ago 2020
Commentato: madhan ravi il 24 Ago 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

Risposta accettata

Walter Roberson
Walter Roberson il 23 Ago 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 Commenti
AA
AA il 24 Ago 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 il 24 Ago 2020
nd = ndims(CC{1,1});
sol = sum(cat(nd+1, CC{:,1}),nd+1);

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Più risposte (1)

Sara Boznik
Sara Boznik il 23 Ago 2020
for i=1:24
sol=sum((CC(:,i)))
end
  1 Commento
Walter Roberson
Walter Roberson il 23 Ago 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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