n> <span class="op">&lt;-</span> <span class="fu">compute_annual_frequencies</span><span class="op">(</span>station_number <span class="op">=</span> <span class="st">"08NM116"</span>,</span></span>
<span class="r-in"><span>                                      start_year <span class="op">=</span> <span class="fl">1980</span>,</span></span>
<span class="r-in"><span>                                      end_year <span class="op">=</span> <span class="fl">2010</span><span class="op">)</span></span></span>
<spa