MATLAB: Indexing way to retrieve indices of nonempty elements of a cell array

cell arraysindexing methodsnonempty elements

Is there an indexing way (I couldn't figure one out) to do what this little function does:
function nonempty = findNonEmpty(cellarray)
  % Find indices of non-empty array elements of cellarray
  % Example:
  %   findNonEmpty({[], {3}, [], [], eye(100)}) returns [2 5]
    nonempty = [];
    for i=1:length(cellarray)
        if ~isempty(cellarray{i})
            nonempty(end+1) = i;        
        end
    end

Best Answer

a={[], {3}, [], [], eye(100)};
b=find(~cellfun('isempty',a))
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