the given values or,
if a vector of length 2 is passed, the given ranges.</p></td>
    </tr>
    <tr>
      <th>number.of.missing.values</th>
      <td><p>[<code>numeric(1) | numeric(2)</code>]<br />
If not <code>NULL</code>, subsets the entries with respect to the given values or,
if a vector of length 2 is passed, the given ranges.</p></td>
    </tr>
    <tr>
      <th>tag</th>
      <td><p>[<code>character</code>]<br />
If not <code>NULL</code> only entries with the corresponding <code>tag</code>s
are li