"><i class="fa fa-check"></i><b>12.1</b> Vectorized Code</a></li>
<li class="chapter" data-level="12.2" data-path="speed.html"><a href="speed.html#how-to-write-vectorized-code"><i class="fa fa-check"></i><b>12.2</b> How to Write Vectorized Code</a></li>
<li class="chapter" data-level="12.3" data-path="speed.html"><a href="speed.html#how-to-write-fast-for-loops-in-r"><i class="fa fa-check"></i><b>12.3</b> How to Write Fast for Loops in R</a></li>
<li class="chapter" data-level="12.4" data-path="speed.html"><