MATLAB: Cell2Mat for cells with different dimensions

cell2matMATLAB

Hi all
i have a cell array like this: C={(21 24 47 89 57)' , ( 24 21)' , (16 87 47 89 90 99 182)'} i want to obtain a matrix like that:
21 24 16
24 21 87
A= 47 0 47
89 0 89
57 0 90
0 0 99
0 0 182
How can i do that?
Thank you for the help
Regards

Best Answer

Try this: 
C={[21  24  47  89  57]' , [24  21]' , [16  87  47  89  90  99  182]'}; 
rows = cellfun(@numel,C);
cols = size(C,2);
A = zeros(max(rows),cols);
for k = 1:cols
    A(1:rows(k),k) = C{k};
end
producing: 
A
A =
    21    24    16
    24    21    87
    47     0    47
    89     0    89
    57     0    90
     0     0    99
     0     0   182
EDIT — (16 Aug 2020 at 21:31)
Corrected the preallocation of ‘A’ to use the previously calculated values of ‘rows’ and ‘cols’. Code otherwise unchanged.
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