Generating a vector containing the sizes of all cells of a cell array, along a specific dimension

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Is there a way to vectorize this? (I tried with "cellfun", but did not succeed).
for i = 1:numel(a)
s(i) = size(a{i}, 1);
Where a sample of "a" is provided in attachment.

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More Answers (1)

Jan on 26 Jan 2017
Edited: Jan on 26 Jan 2017
cellfun has some builtin-functions, which are provided as strings and much faster than using anomyous functions:
s = cellfun('size', a, 1)
Unfortunately they appear in the docs as "Backward compatibility" only, but they are jewels.

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