n class="fu"><a href="https://rdrr.io/r/base/Random.html" class="external-link">set.seed</a></span><span class="op">(</span><span class="fl">12</span><span class="op">)</span>  <span class="co"># reproducible randomness</span></span>
<span><span class="va">rcases</span> <span 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">sampl