delete columns of empty elements of a cell

Question

Alberto Acri 2023-6-23

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1987388-delete-columns-of-empty-elements-of-a-cell

编辑： Mayur 2023-7-9

Hello! I have a cell like this:

empty_elem = [];
A = {'5','11',empty_elem,empty_elem;'99','169','188',empty_elem;'250','258','267',empty_elem};

I want to delete the column consisting of null elements and transform the cell like this:

A = {'5','11',empty_elem;'99','169','188';'250','258','267'};

I would need code that can do this also considering that:

It may happen to have multiple null columns (and not just one).
Null columns are always found at the end (inside the cell).

I tried this way, but it deletes columns that I don't want to be deleted:

empty_elem = [];
A = {'5','11',empty_elem,empty_elem;'99','169','188',empty_elem;'250','258','267',empty_elem};
A(:, any(cellfun(@isempty, A), 1)) = [];

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Answer 1

Mayur 2023-6-23

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https://ww2.mathworks.cn/matlabcentral/answers/1987388-delete-columns-of-empty-elements-of-a-cell#answer_1261503

编辑：Mayur 2023-7-9

在 MATLAB Online 中打开

Hi Alberto!

I understand that some extra columns are also getting deleted using the above command. You can instead use the following code snippet to achieve the desired functionality:

empty_elem = [];
A = {'5','11',empty_elem,empty_elem;'99','169','188',empty_elem;'250','258','267',empty_elem};
A(:, all(cellfun(@isempty, A), 1)) = [];
disp(A);
    {'5'  }    {'11' }    {0×0 double}
    {'99' }    {'169'}    {'188'     }
    {'250'}    {'258'}    {'267'     }