ode>line_alpha</code> and will override <code>alpha</code>.</p></li>
</ul>

    <h2 class="hasAnchor" id="mapped-plot-attributes-and-legends"><a class="anchor" href="#mapped-plot-attributes-and-legends"></a>Mapped plot attributes and legends</h2>

    <p>When specifying an input data frame for a layer through the <code>data</code> argument, columns of <code>data</code> can be used to specify various plot attributes such as <code>color</code>, etc. For example, with <code><a href='ly_points.html'>ly_points(.