lizing-trends.html"><a href="visualizing-trends.html"><i class="fa fa-check"></i><b>14</b> Visualizing trends</a><ul>
<li class="chapter" data-level="14.1" data-path="visualizing-trends.html"><a href="visualizing-trends.html#smoothing"><i class="fa fa-check"></i><b>14.1</b> Smoothing</a></li>
<li class="chapter" data-level="14.2" data-path="visualizing-trends.html"><a href="visualizing-trends.html#showing-trends-with-a-defined-functional-form"><i class="fa fa-check"></i><b>14.2</b> Showing trends with a def