MATLAB: Cell contents reference from a non-cell array object.

arraycell arraysmatrix

 How to delete an element k in a cell array in a for loop? l have a set called neighbour_n{i} where i varies from 1 to n 
But it returns me this error :
??? Cell contents reference from a non-cell array object.
Error in ==> @(d)setxor([d{:}],[k])
Error in ==> broadcastelimination at 118 cellfun(fun, neighbour_n, 'UniformOutput', false)
neighbour_n=cell(N,1);
N = numel(neighbour_n);
for i=1:N
                 if (ismember(k, neighbour_n{i}));
                      idx = find(cell2mat(neighbour_n{i}) == k);
                       neighbour_n{i}(idx) = [];
                end
end

Best Answer

the answer is :
neighbour_n{i}= setdiff(neighbour_n{i},F);
problem solved
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