23902694/" class="external-link">Li <em>et al</em> 2013</a> and <a href="https://pubmed.ncbi.nlm.nih.gov/26238958/" class="external-link">Austin <em>et al</em> 2015</a>). In tableone, all weighted estimates are calculated by weighted estimation functions in the <code>survey</code> package.</p>
    </div>
    <div id="references">
    <h2>References</h2>
    <p>Flury, BK. and Riedwyl, H. (1986). Standard distance in univariate and multivariate analysis. <em>The American Statistician</em>, <b>40</b>, 249-251.