rdrr.io/r/stats/predict.html" class="external-link">predict</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/stats/smooth.spline.html" class="external-link">smooth.spline</a></span><span class="op">(</span><span class="va">x</span>, <span class="va">y</span>, df <span class="op">=</span> <span class="fl">30</span><span class="op">)</span>, <span class="va">xout</span><span class="op">)</span><span class="op">$</span><span class="va">y</span></span></span>
<span class="r-in"><sp