You cannot set a cell array entry to a logical value.
>> bar = cell(3,1)
bar =
[]
[]
[]
>> bar(1) = false
??? Conversion to cell from logical is not possible.
In your code, there is no point using temp_allzeros as an array since every member is the same. Your code could be replaced with
allzeros = cell(size(config.MIDlist,1),1);
for i = 1:length(temp_allzeros)
allzeros{i} = false;
end
But faster would be
allzeros(1:size(config.MIDlist,1)) = {false}; %corrected per Sean
Note, though, that in your original code and in my code, the cell entries are set to actual logicals, not the empty logical. So you need to jigger the code more:
allzeros(1:size(config.MIDlist,1)) = {false(0,0)};
As you asked about "faster", you might want to do timing tests to compare
[allzeros{1:size(config.MIDlist,1)}] = deal(false(0,0));
