="fl">1</span><span class="op">/</span><span class="fl">3</span><span class="op">)</span>
    <span class="va">groups_to_draw</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/split.html">split</a></span><span class="op">(</span><span class="va">data_draw</span>, <span class="va">data_draw</span><span class="op">$</span><span class="va">group</span><span class="op">)</span>
    <span class="va">group_xsplines</span> <span class="op">&lt;-</span> <span class="fu"><a href="