le).</p></li>
<li><p><code>bt.lwd</code>: Width of the lines used for plotting the
      branches of a barrier tree. The default is <code>2</code>.</p></li>
</ul></li>
</ul>
    

    <h2 class="hasAnchor" id="examples"><a class="anchor" href="#examples"></a>Examples</h2>
    <pre class="examples"><div class='input'><span class='co'># create a feature object</span>
<span class='no'>X</span> <span class='kw'>=</span> <span class='fu'><a href='createInitialSample.html'>createInitialSample</a></span>(<span cla