c">|&gt;</span>       </span>
<span id="cb12-4"><a href="#cb12-4" aria-hidden="true" tabindex="-1"></a>  <span class="fu">mutate</span>(누적도수 <span class="ot">=</span> <span class="fu">cumsum</span>(도수)) <span class="sc">|&gt;</span></span>
<span id="cb12-5"><a href="#cb12-5" aria-hidden="true" tabindex="-1"></a>  <span class="fu">mutate</span>(상대도수 <span class="ot">=</span> 도수 <span class="sc">/</span> <span class="fu">sum</span>(도수)) <span class="sc">|&gt;</span> </span>
<span i