 it becomes useful to know a few things about <code>plot_ly()</code>:</p>
<ul>
<li>Arguments specified in <code>plot_ly()</code> are <em>global</em>, meaning that any downstream <code>add_*()</code> functions inherit these arguments (unless <code>inherit = FALSE</code>).</li>
<li>Data manipulation verbs from the <strong>dplyr</strong> package may be used to transform the <code>data</code> underlying a <strong>plotly</strong> object.<a href="#fn3" class="footnote-ref" id="fnref3"><sup>3</sup></a></li>
</ul>
