ing through it.</p>
<div class="sourceCode" id="cb11"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span class="va">node_label</span> <span class="op">&lt;-</span> <span class="va">pbuilt</span><span class="op">$</span><span class="va">data</span><span class="op">[[</span><span class="fl">2</span><span class="op">]</span><span class="op">]</span><span class="op">$</span><span class="va">stratum</span><span class="op">[</span><span class="va">node_row</span><span class="op">]</span>
<span cl