link">geom_histogram()</a></code> can be set as the active geom layer(s) so far.
(N.B. more than one <code><a href="https://ggplot2.tidyverse.org/reference/geom_point.html" class="external-link">geom_point()</a></code> layer can be set as an active layer,
but only one <code><a href="https://ggplot2.tidyverse.org/reference/geom_histogram.html" class="external-link">geom_histogram()</a></code> can be set as an active geom layer and it can be the only active layer.)</p></dd>

</dl></div>
    <div class="sectio