span><span class="va">mydata</span><span class="op">)</span>,</span></span>
<span class="r-in"><span>  replace <span class="op">=</span> <span class="cn">TRUE</span></span></span>
<span class="r-in"><span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">mydata</span><span class="op">$</span><span class="va">age</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/sample.html" class="external-link">sample</a></span><span class="op">(</span></s