span> <span class="fl">2</span>,</span>
<span>                  input <span class="op">=</span> <span class="fl">3</span>,</span>
<span>                  id <span class="op">=</span> <span class="fl">1</span>,</span>
<span>                  ascending <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span></span>
<span></span>
<span></span>
<span><span class="co"># return an object of class 'grouped_rankings'</span></span>
<span><span class="va">R</span> <span class="op">=</span> <spa