r/blob/master/R/hierarchy.R'><code>R/hierarchy.R</code></a></small>
    <div class="hidden name"><code>promote_na.Rd</code></div>
    </div>

    <div class="ref-description">
    
    <p>Apply `promote_na` to All Rows</p>
    
    </div>

    <pre class="usage"><span class='fu'>promote_na</span><span class='op'>(</span><span class='va'>x</span><span class='op'>)</span></pre>
    
    <h2 class="hasAnchor" id="arguments"><a class="anchor" href="#arguments"></a>Arguments</h2>
    <table class="ref-arguments"