ss="op">=</span> <span class="st">"density_ridges_gradient"</span>,</span>
<span>    calc_ecdf <span class="op">=</span> <span class="cn">TRUE</span>,</span>
<span>    quantiles <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="fl">0.025</span>, <span class="fl">0.975</span><span class="op">)</span></span>
<span>  <span class="op">)</span> <span class="op">+</span></span>
<span>  <span class="fu"><a href