pre>

    <h2 class="hasAnchor" id="arguments"><a class="anchor" href="#arguments"></a>Arguments</h2>
    <table class="ref-arguments">
    <colgroup><col class="name" /><col class="desc" /></colgroup>
    <tr>
      <th>x</th>
      <td><p>an subset object to pass to apply</p></td>
    </tr>
    <tr>
      <th>dat</th>
      <td><p>an object of class &#8216;OrganizedBirds&#8217; (organised BIRDS Spatial data frame).</p></td>
    </tr>
    <tr>
      <th>visitCol</th>
      <td><p>name of the column for the