Concatenate multiple cell into a single cell

Question

eko supriyadi 2022-6-3

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1733415-concatenate-multiple-cell-into-a-single-cell

评论： Voss 2022-6-4

采纳的回答： Voss

在 MATLAB Online 中打开

Hi all,

I have cell (many cell) array that contains varying length in row direction. For example see below ilustration:

ncell1={'12','21','44','02','35'};              % 1x5 cell
ncell2={'03','21','45','45','11'};              % 1x5 cell
ncell3={'23','15','47','36','35','78'};         % 1x6 cell
ncell4={'47','28','99'};                        % 1x3 cell
ncell={ncell1 ncell2 ncell3 ncell4}.';          %-->4x1 cell

the problem, how can i concatenate 4 cells those to 1 cell with 4x6 cell dimension size (yes, 4x6 size! not 4x1 or 1x4 or 1x1). So the result what i want like (note: the ncell5 below just copy paste ncell1-4 for easy ilustration) :

so far have i do:

result = cat(1,ncell);                              %same with result ncell
result = {[ncell(1) ncell(2) .... ]}                %only combine the dimensions of the cells
result = [char(ncell{1}), char(ncell{2}) ....];     %character not uniform

remember i work with hundred ncell. tks for your help :)

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Answer 1

Voss 2022-6-3

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1733415-concatenate-multiple-cell-into-a-single-cell#answer_978500

编辑：Voss 2022-6-3

在 MATLAB Online 中打开

ncell1={'12','21','44','02','35'};              % 1x5 cell
ncell2={'03','21','45','45','11'};              % 1x5 cell
ncell3={'23','15','47','36','35','78'};         % 1x6 cell
ncell4={'47','28','99'};                        % 1x3 cell
ncell={ncell1; ncell2; ncell3; ncell4};         %-->4x1 cell
m = numel(ncell);
n = cellfun(@numel,ncell);                      % n = [5; 5; 6; 3]
ncell2d = cell(m,max(n));                       % 4x6 cell (!)
for ii = 1:m
    ncell2d(ii,1:n(ii)) = ncell{ii};
end
disp(ncell2d);
    {'12'}    {'21'}    {'44'}    {'02'      }    {'35'      }    {0×0 double}
    {'03'}    {'21'}    {'45'}    {'45'      }    {'11'      }    {0×0 double}
    {'23'}    {'15'}    {'47'}    {'36'      }    {'35'      }    {'78'      }
    {'47'}    {'28'}    {'99'}    {0×0 double}    {0×0 double}    {0×0 double}