ne)</span></span>
<span id="cb7-8"><a href="#cb7-8" tabindex="-1"></a>dense_vol <span class="ot">&lt;-</span> <span class="fu">as.dense</span>(roi)</span>
<span id="cb7-9"><a href="#cb7-9" tabindex="-1"></a><span class="fu">cat</span>(<span class="st">&quot;Dense size:&quot;</span>, <span class="fu">format</span>(<span class="fu">object.size</span>(dense_vol), <span class="at">units =</span> <span class="st">&quot;auto&quot;</span>), <span class="st">&quot;</span><span class="sc">\n</span><span class="st">&