Zero padding a 3d structure according to maximum length

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Uerm 2019-11-3

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https://ww2.mathworks.cn/matlabcentral/answers/488960-zero-padding-a-3d-structure-according-to-maximum-length

评论： Uerm 2019-11-4

Hi,

I have a 1x24 cell containing tensors (3d structures) with sizes 90xYxZ. I want to pad zeros along the second dimension (Y) so that all the tensors have the same length as the maximum Y value in the cell. How can I do that?

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Answer 1

Turlough Hughes 2019-11-3

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https://ww2.mathworks.cn/matlabcentral/answers/488960-zero-padding-a-3d-structure-according-to-maximum-length#answer_399583

编辑：Turlough Hughes 2019-11-3

Hi Uerm,

Lets call your data mycellarray. You can padd the second dimension of all tensors to have the same length as the one with the longest Y dimension as follows:

[~,b,~]=cellfun(@size,mycellarray) % get size of Y on each tensor
idx_padd=max(b)-b; % find difference from max Y dimension
for ii=1:length(mycellarray)
    mycellarray{1,ii}= padarray(mycellarray{1,ii},[0 idx_padd(ii) 0],0,'post'); %padd
end