><span class="op">(</span><span class="va"><a href="https://dplyr.tidyverse.org" class="external-link">dplyr</a></span><span class="op">)</span></span>
<span><span class="kw"><a href="https://rdrr.io/r/base/library.html" class="external-link">library</a></span><span class="op">(</span><span class="va"><a href="https://github.com/cdmuir/photosynthesis">photosynthesis</a></span><span class="op">)</span></span>
<span></span>
<span><span class="co"># Read in data</span></span>
<span><span class="va">dat</span> 