><span class="va">long</span>, y<span class="op">=</span><span class="va">nat_map16</span><span class="op">$</span><span class="va">lat</span><span class="op">)</span> <span class="op">+</span></span></span>
<span class="r-in"><span>  <span class="fu"><a href="https://rdrr.io/pkg/ggthemes/man/theme_map.html" class="external-link">theme_map</a></span><span class="op">(</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="op">}</span></span></span>
</code></pre></div>
    </div>