title: determine average length of cells in a cell array
body: <p>Hi I have a cell array in matlab, where the cells are of differing lengths. how do i determine the average length of the cells.</p>
  
  <p>I have tried:</p>
  
  <pre><code>mean(length(mycell{:});
  </code></pre>
  
  <p>however this is too many inputs for the mean function.</p>
  
  <p>Thanks.</p>