n></code></pre></div>
    </div>

    <div id="arguments">
    <h2>Arguments</h2>
    <dl><dt>y1</dt>
<dd><p>The column of y (response variable) values plus detection limits</p></dd>


<dt>ycen</dt>
<dd><p>The y-variable indicators, where 1 (or <code>TRUE</code>) indicates a detection limit in the <code>y.var</code> column, and <code>0</code> (or <code>FALSE</code>) indicates a detected value in <code>y.var</code>.</p></dd>


<dt>x1</dt>
<dd><p>The column of x (explanatory variable) values plus detection li