"hl std">(</span><span class="hl num">.4</span><span class="hl std">,</span> <span class="hl num">.6</span><span class="hl std">,</span> <span class="hl num">.4</span><span class="hl std">,</span> <span class="hl num">.6</span><span class="hl std">,</span> <span class="hl num">.4</span><span class="hl std">)</span>
<span class="hl kwd">grid.xspline</span><span class="hl std">(x, y,</span> <span class="hl kwc">shape</span><span class="hl std">=</span><span class="hl num">1</span><span class="hl std">)</span>