lass="anchor" aria-label="anchor" href="#arg-longname"></a></dt>
<dd><p>logical. Should the output column labeled with the
original column name? Default uses <code>TRUE</code>.</p></dd>

</dl></div>
    <div id="value">
    <h2>Value</h2>
    <p>data.table</p>
    </div>
    <div id="details">
    <h2>Details</h2>
    <p>If no columns provided, will return the original data frame.
 When NA exist in the input column, they would also be considered. If
 the input character column contains both NA 