How to treat select elements from within multiple cells as a single vector

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What is the proper syntax for this indexing?:
ContainerArray = cell(13,9);
[ContainerAray{:,:}] = deal(rand(1,6))
DesiredVector = sum(ContainerArray{2:end,1}(1,1))
That is, how to I extract the nth elements of the arrays contained in the first cell column, cell rows 2:end (or really any cell index), and treat those extracted nth elements as a single array/vector?
  2 comentarios
David Hill
David Hill el 26 de Sept. de 2022
Why use a cell array if all entries are doubles?
Gabriel Stanley
Gabriel Stanley el 26 de Sept. de 2022
Actual data isn't, was trying to quicky create some dummy data to help illustrate basic problem. Also, even if all array are of the same type, individual arrays could be different sizes as long as a known index (e.g. (1,1)) was guaranteed to exist.

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Jan
Jan el 26 de Sept. de 2022
Editada: Jan el 26 de Sept. de 2022
C = cell(5, 4);
C(:) = {2:5}; % Faster than with DEAL
V = cellfun(@(x) x(1,1), C(2:end,1), 'UniformOutput', 1)
V = 4×1
2 2 2 2
V = sum(V)
V = 8
  3 comentarios
Gabriel Stanley
Gabriel Stanley el 26 de Sept. de 2022
yeah, that. Sorry, running on very little sleep atm.

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