the plot. You must supply <code>mapping</code> if there is no plot
mapping.</p></dd>


<dt id="arg-data">data<a class="anchor" aria-label="anchor" href="#arg-data"></a></dt>
<dd><p>The data to be displayed in this layer. There are three
options:</p>
<p>If <code>NULL</code>, the default, the data is inherited from the plot
data as specified in the call to <code><a href="https://ggplot2.tidyverse.org/reference/ggplot.html" class="external-link">ggplot()</a></code>.</p>
<p>A <code>data.frame</code>, or other o