a href="../reference/distance.sampling.html">distance.sampling</a></span><span class="op">(</span>tree.tls <span class="op">=</span> <span class="va">tree.list</span>,
                             id.plots <span class="op">=</span> <span class="cn">NULL</span>,
                             strata.attributes <span class="op">=</span> <span class="cn">NULL</span><span class="op">)</span></code></pre></div>
<p>The <strong><code>distance.sampling</code></strong> function computes
the probability of detection of