is</p></td>
    </tr>
    <tr>
      <th>shapes</th>
      <td><p>The marker shapes (default=19)</p></td>
    </tr>
    <tr>
      <th>colours</th>
      <td><p>The marker colours (default='red') as vector or named vector</p></td>
    </tr>
    <tr>
      <th>lineColours</th>
      <td><p>The line colours (default='grey60') as vector or named
vector</p></td>
    </tr>
    <tr>
      <th>markerSize</th>
      <td><p>Size of markers (default=2)</p></td>
    </tr>
    <tr>
      <th>fontSize</th>
      <td><p>