any idea why this isn't returning true???
comments01a is a cell array of cells although I'd be perfectly happy converting it to a matrix. However, cell2mat(comments01a) gives its own error that it doesn't support cell arrays containing cell arrays or objects (which this one does) and I don't know of any alternatives.
comments01a{1}
ans = '4'
isequal(comments01a{1}, '4')
ans = 0