5</span>, <span class="fl">27.5</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">R</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/subset.html" class="external-link">subset</a></span><span class="op">(</span><span class="va">index</span>, rectangle <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/list.html" class="external-link">list</a></span><span class="op">(</span>longitude <span class="op">=</span> <s