
<ul>
<li class="chapter" data-level="4.1" data-path="tidy-data.html"><a href="tidy-data.html#tidy-data-and-why-it-matters"><i class="fa fa-check"></i><b>4.1</b> Tidy data and why it matters</a></li>
<li class="chapter" data-level="4.2" data-path="tidy-data.html"><a href="tidy-data.html#wrangling-data"><i class="fa fa-check"></i><b>4.2</b> Wrangling data</a></li>
<li class="chapter" data-level="4.3" data-path="tidy-data.html"><a href="tidy-data.html#how-to-wrangle-data"><i class="fa fa-check"></i><b>4.3</b>