span>,</span>
<span>  season_start <span class="op">=</span> <span class="fl">21</span>,</span>
<span>  season_end <span class="op">=</span> <span class="fl">20</span>,</span>
<span>  only_current_season <span class="op">=</span> <span class="cn">FALSE</span></span>
<span><span class="op">)</span></span>
<span></span>
<span><span class="fu"><a href="../reference/historical_summary.html">historical_summary</a></span><span class="op">(</span><span class="va">tsd_onset</span><span class="op">)</span></span>
<s