   </div>

    <div id="arguments">
    <h2>Arguments</h2>
    <dl><dt>x</dt>
<dd><p>A data frame.</p></dd>


<dt>y</dt>
<dd><p>A non-negative vector of shares.</p></dd>


<dt>na.rm</dt>
<dd><p>A logical vector that indicates whether <code>NA</code> values should
be excluded or not. Must be either <code>TRUE</code> or <code>FALSE</code>. The default
is <code>TRUE</code>.
If set to <code>FALSE</code> the computation yields <code>NA</code> if <code>NA</code> values
are present.</p></dd>

</dl></div>
    <div 