hree
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 object, will override the plot
data.</p>
<p>A <code>function</code> will be called with a single argument,
the plot data. The return value must be a <code>data.frame.</code>, and
will be used as the layer data.</p></dd>


<dt id="arg