pan class="op">(</span><span class="va">SimpleCountries</span>, field <span class="op">=</span> <span class="st">"UN_region"</span>, sum_fields <span class="op">=</span> <span class="st">"area"</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/graphics/plot.default.html" class="external-link">plot</a></span><span class="op">(</span><span class="va">regions</span><span class="op">)</span></span></span>
<span class="r-plt img"><img src="dissolve