/span>, <span class="fl">5</span><span class="op">)</span>, <span class="op">~</span> <span class="fu"><a href="paste.html">paste0</a></span><span class="op">(</span><span class="st">'01/01/199'</span>, <span class="va">.x</span><span class="op">)</span><span class="op">)</span><span class="op">)</span>,</span></span>
<span class="r-in"><span>  y <span class="op">=</span> <span class="fu"><a href="https://lubridate.tidyverse.org/reference/ymd.html" class="external-link">mdy</a></span><span class="op">(</spa