span>
<span>  <span class="va">station_number</span>,</span>
<span>  roll_days <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="fl">1</span>, <span class="fl">3</span>, <span class="fl">7</span>, <span class="fl">30</span><span class="op">)</span>,</span>
<span>  roll_align <span class="op">=</span> <span class="st">"right"</span>,</span>
<span>  use_max <span class="op">=</span> <span class="cn">FALSE<