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delete columns inside a cell based on null elements

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Alberto Acri
Alberto Acri 2023-6-23
编辑： Matt J 2023-6-23
Hi! In this example:
union_cell = importdata("union_cell.mat");
I should know whether in the block included by rows 3:5 and columns 2:6, there are columns characterized by all null elements.
For example, columns 4:6 have the three rows with null elements. I need to delete those columns and get this:

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Matt J
Matt J 2023-6-23
编辑：Matt J 2023-6-23
map = cellfun('isempty',union_cell)
tf=all( map(3:5,:),1);
union_cell(:,tf)=[]

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