Adding cell array entries

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AA
AA 2020-8-23
评论： madhan ravi 2020-8-24
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

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采纳的回答

Walter Roberson
Walter Roberson 2020-8-23
nd = ndims(CC{1,1});
sol = sum(cat(ndims+1, CC{:,1}),ndims+1);
There are also approaches using the more obscure fold() operation.
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显示 2更早的评论
AA
AA 2020-8-24
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 2020-8-24
nd = ndims(CC{1,1});
sol = sum(cat(nd+1, CC{:,1}),nd+1);

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更多回答（1 个）

Sara Boznik
Sara Boznik 2020-8-23
for i=1:24
sol=sum((CC(:,i)))
end
  1 个评论
Walter Roberson
Walter Roberson 2020-8-23
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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