 class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/sort.html" class="external-link">sort</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/sample.html" class="external-link">sample</a></span><span class="op">(</span><span class="va">n</span>, <span class="va">n</span><span class="op">/</span><span class="fl">2</span><span class="op">)</span><span class="op">)</span></span></span>
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