span> <span class="fl">0.25</span>), <span class="st">&quot;low&quot;</span>,</a>
<a class="sourceLine" id="cb12-4" data-line-number="4">                                 <span class="kw">ifelse</span>(ozonedat<span class="op">$</span>Temp <span class="op">&gt;</span><span class="st"> </span><span class="kw">quantile</span>(ozonedat<span class="op">$</span>Temp, <span class="dt">prob =</span> <span class="fl">0.8</span>), <span class="st">&quot;high&quot;</span>, <span class="st">&quot;medium&quot;</span>))<