Converting 2D cell array to 3D matrix

Question

Lyle Edwards 2023-6-9

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1980839-converting-2d-cell-array-to-3d-matrix

评论： Lyle Edwards 2023-6-10

I have a cell that is [8x454] with each element in the cell containing a [900x1] matrix. I would like to convert this cell into a 3 dimensional matrix of size [8x454x900]. Ive tried some things including reshape, cat and permute but can never seem to get it right. Any help would be greatly appreciated!

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Answer 1

James Tursa 2023-6-10

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1980839-converting-2d-cell-array-to-3d-matrix#answer_1253379

编辑：James Tursa 2023-6-10

在 MATLAB Online 中打开

E.g.,

MyCell = repmat({(1:4)'},2,3) % small sample data
MyCell = 2×3 cell array
    {4×1 double}    {4×1 double}    {4×1 double}
    {4×1 double}    {4×1 double}    {4×1 double}
[m,n] = size(MyCell);
reshape(cell2mat(MyCell(:)').',m,n,[])
ans = 
ans(:,:,1) =

     1     1     1
     1     1     1


ans(:,:,2) =

     2     2     2
     2     2     2


ans(:,:,3) =

     3     3     3
     3     3     3


ans(:,:,4) =

     4     4     4
     4     4     4
size(ans)
ans = 1×3
     2     3     4