 we need the entire matrix. By default it is FALSE.</p></td>
    </tr>
    <tr>
      <th>agg</th>
      <td><p>Optional. Boolean. Whether or not to add a row of aggregate transitions at the end of the matrix. Default is FALSE.</p></td>
    </tr>
    </table>
    
    <h2 class="hasAnchor" id="value"><a class="anchor" href="#value"></a>Value</h2>

    <p>matrix with rows = total number of items + 1 (last row contains aggregate distribution across items)
number of columns = 4 when no don't know, and 9 when t