>Waterfall Charts</h2>
<p><code><a href="../reference/viz_waterfall.html">viz_waterfall()</a></code> creates a waterfall plot showing, for a
fixed time-period, the initial open count, newly opened, newly closed,
and final open count of issues or milestones.</p>
<div class="sourceCode" id="cb9"><html><body><pre class="r"><span class="fu"><a href="../reference/viz_waterfall.html">viz_waterfall</a></span>(<span class="no">pkg_issues</span>, <span class="kw">start_date</span> <span class="kw">=</span> <span cla