span class="va">w</span>, digits <span class="op">=</span> <span class="fl">3</span>, warn <span class="op">=</span> <span class="cn">TRUE</span>, na.rm <span class="op">=</span> <span class="cn">FALSE</span><span class="op">)</span></span></code></pre></div>
    </div>

    <div id="source">
    <h2>Source</h2>
    <p>Chun, Yongwan, and Daniel A. Griffith. Spatial Statistics and Geostatistics: Theory and Applications for Geographic Information Science and Technology. Sage, 2013.</p>
<p>Cliff, Andrew David,