                     <span class="fu">as.numeric</span>(<span class="fu">object.size</span>(dense_vol))) <span class="sc">*</span> <span class="dv">100</span>, <span class="dv">1</span>), <span class="st">&quot;%</span><span class="sc">\n</span><span class="st">&quot;</span>)</span>
<span id="cb7-17"><a href="#cb7-17" tabindex="-1"></a><span class="co">#&gt; Space savings: 99 %</span></span></code></pre></div>
</div>
<div id="file-backed-arrays" class="section level2">
<h2>File-Backed Arrays</h2>
<p>For dat