se/system.file.html" class="external-link">system.file</a></span><span class="op">(</span><span class="st">"extdata"</span>, package <span class="op">=</span> <span class="st">"eixport"</span><span class="op">)</span>,</span></span>
<span class="r-in"><span>           wrfchemi_dir <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/file.path.html" class="external-link">file.path</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/tempfile.html" class="e