An n-by-n square logical matrix can be represented by a cell vector of n element

Question

An n-by-n square logical matrix can be represented by a cell vector of n elements where the kth
element corresponds to the kth row of the matrix. Each element of the cell vector is a row
vector of positive integers in increasing order representing the column indexes of the logical
true values in the given row of the matrix. All other elements in the given row of the logical
matrix are false. Write a function called logiunpack that takes such a cell vector as its
only input and returns the corresponding square logical matrix. For example, such a cell vector
representation of a 100-by-100 logical matrix with the only true elements at indexes (10,20)
and (10,75) would have only one non-empty element of the cell vector at index 10. That
element is the vector [20 75].

Explanation / Answer

function [ res ] = logiunpack( cellVector)
   %ce is cell vector
   res=zeros(size(cellVector,2));
   for i=1:size(res,1)
       for j=1:length(cellVector{i})
           res(i,cellVector{i}(j))=1;
       end
   end
   res=logical(res);
end

%calling function
C = cell(100) % pass your oen cell vector
res = [];
res = logiunpack(C)

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