Populating an array with a vairable-output function

Question

Gabriel Stanley 2021-5-21

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https://ww2.mathworks.cn/matlabcentral/answers/836478-populating-an-array-with-a-vairable-output-function

编辑： Gabriel Stanley 2021-5-24

How can I concatenate the outputs of a function together, when the size of the output varies? E.g.

fileBatch = {'File1','File2','...FileN'}
for f = 1:length(fileBatch)
    OutputInformationTable(:,:,f) = fcn(fileBtach(f))
end

where the array returned by fcn could be 1x10, 3x12, etc. My current implementation throws a fault if the size of the returned array changes across iterations of the loop (even if the second iteration returns a smaller array). I do not have enough knoweldge about the files to pre-allocate the OutputInformationTable array.

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Answer 1

Matt J 2021-5-21

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https://ww2.mathworks.cn/matlabcentral/answers/836478-populating-an-array-with-a-vairable-output-function#answer_705568

编辑：Matt J 2021-5-21

在 MATLAB Online 中打开

Use a cell array instead.

fileBatch = {'File1','File2','...FileN'}
for f = 1:length(fileBatch)
    OutputInformationTable{f} = fcn(fileBtach(f))
end

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Gabriel Stanley 2021-5-24

编辑：Gabriel Stanley 2021-5-24

Thanks Matt, this worked wonders. I had assumed that because fcn returns a cell array, OutputInformationTable would itself be a cell array (and trying to pre-allocate it as a cell array with dummy dimensions didn't work).

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