mples"></a></h2>
    <div class="sourceCode"><pre class="sourceCode r"><code><span class="r-in"><span><span class="co"># "Load" the data. In this case we are using data built into the package.</span></span></span>
<span class="r-in"><span><span class="co"># In practice, users will likely load raster data using the raster() function</span></span></span>
<span class="r-in"><span><span class="co"># from the raster package.</span></span></span>
<span class="r-in"><span><span class="va">res_data</span> <span cla