Finding total count of values in a cell array?

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Jason
Jason 2011-8-13
I have a 4-D cell array, and there are empty arrays '[]' within it. How do I find the total number of the empty arrays?
This is what I tried.
% A is 4-D cell array
cnt = 0;
for a = 1:1:(size(A, 1))
for b = 1:1:(size(A, 2))
for c = 1:1:(size(A, 3))
for d = 1:1:(size(A, 4))
if A(a, b, c, d) == []
then cnt = cnt + 1;
end
end
end
end
end
Error: Undefined function or method 'eq' for input arguments of type 'cell'.
Someone please help me? Thanks.
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Fangjun Jiang
Fangjun Jiang 2011-8-13
First, to reference the content of a cell array, you need to use {}, not ()
To check if the content is empty, use isempty(), not to use ==[]
Jason
Jason 2011-8-13
Yes, I made a mistake, it should be A{a, b, c, d} - curly brackets, secondly, I learnt something new - the use of isempty. Thanks again.

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Fangjun Jiang
Fangjun Jiang 2011-8-13
cnt=cellfun('isempty',A);
cnt=sum(cnt(:));

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