-</span> <span class="fu"><a href="https://rdrr.io/r/base/lapply.html">lapply</a></span><span class="op">(</span>
      <span class="va">group_xsplines</span>,
      <span class="kw">function</span><span class="op">(</span><span class="va">coords</span><span class="op">)</span> <span class="fu">grid</span><span class="fu">::</span><span class="fu"><a href="https://rdrr.io/r/grid/grid.xspline.html">xsplineGrob</a></span><span class="op">(</span>x <span class="op">=</span> <span class="va">coords</span><span 