tree.R" class="external-link"><code>R/plot_tree.R</code></a></small>
    <div class="hidden name"><code>plot_tree.Rd</code></div>
    </div>

    <div class="ref-description">
    <p><code>plot_tree</code> drew a tree diagram of
frequencies (as nodes) and probabilities (as edges).</p>
    </div>

    <div id="ref-usage">
    <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">plot_tree</span><span class="op">(</span></span>
<span>  prev <span class="op">=</span> <span class="va">n