rame</a></li>
<li class="chapter" data-level="5.5" data-path="mapping-continued.html"><a href="mapping-continued.html#factors"><i class="fa fa-check"></i><b>5.5</b> Factors</a></li>
<li class="chapter" data-level="5.6" data-path="mapping-continued.html"><a href="mapping-continued.html#subsetting-data"><i class="fa fa-check"></i><b>5.6</b> Subsetting Data</a></li>
<li class="chapter" data-level="5.7" data-path="mapping-continued.html"><a href="mapping-continued.html#pipe-operator"><i class="fa fa-check"></i>