d.table.html" class="external-link">read.csv</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/system.file.html" class="external-link">system.file</a></span><span class="op">(</span><span class="st">"extdata"</span>, <span class="st">"A_Ci_T_data.csv"</span>,</span></span>
<span class="r-in"><span>  package <span class="op">=</span> <span class="st">"photosynthesis"</span></span></span>
<span class="r-in"><span><span class="op">)</span>,</span></span>
<span class="r-in"><sp