th>
      <td><p>More controls:</p>
<ul>
<li><p><code>killdupli</code>: Should duplicated response pattern be removed for estimation (estimation is faster)? This is especially resonable in case of a large number of examinees and a small number of items.  Use this option with caution (for map and eap), because persons with different <code>mu</code> and <code>sigma2</code> will have different ability estimates despite they responded identically. Default value is <code>FALSE</code>.</p></li>
<li><p><code>skipc