ptions.</p></dd>


<dt>plot</dt>
<dd><p>logical; if <code>TRUE</code>, return a plot.</p></dd>


<dt>...</dt>
<dd><p>additional parameters for plots</p></dd>

</dl></div>
    <div class="section level2">
    <h2 id="value">Value<a class="anchor" aria-label="anchor" href="#value"></a></h2>
    

<p>an invisible data frame with columns</p><dl><dt><code>threshold</code></dt>
<dd><p>vector of thresholds on the probability scale</p></dd>

<dt><code>coef</code></dt>
<dd><p>extremal asymmetry coefficient estimates