list with tree detection probabilities (i.e., the output file of the
mentioned function) can be introduced in
<strong><code>tree.ds</code></strong>. By default, this argument is set
to <code>NULL</code> and metrics using distance sampling corrections
will not be calculated. The <code>distance.sampling</code> is applied as
follows:</p>
<div class="sourceCode" id="cb2"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span class="va">tree.ds</span> <span class="op">&lt;-</span> <span class="fu"><