with data of the response variable.
Using this argument is equivalent to define a formula with the
right side such as <code>~ 1</code>. See the fourth example below.</p></td>
    </tr>
    <tr>
      <th>scaled</th>
      <td><p>logical. If <code>TRUE</code> (default value), scaled TTT is computed.</p></td>
    </tr>
    <tr>
      <th>data</th>
      <td><p>an optional data frame containing the variables (response and the
factor, if it is desired). If data is not specified, the variables
are taken from the