e</span>,</span>
<span>         spatmeth  <span class="op">=</span> <span class="st">"file"</span>, </span>
<span>         spafile   <span class="op">=</span> <span class="va">spatial_file</span>, </span>
<span>         verbose   <span class="op">=</span> <span class="cn">FALSE</span><span class="op">)</span></span>
<span></span>
<span><span class="co"># --&gt; Create a character array containing a list of shapefiles (or other spatial files)</span></span>
<span><span class="va">extent_list</span> <span clas