><a href="https://rdrr.io/r/base/data.frame.html" class="external-link">data.frame</a></span><span class="op">(</span>lon <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/stats/Uniform.html" class="external-link">runif</a></span><span class="op">(</span><span class="fl">100</span>, min <span class="op">=</span> <span class="op">-</span><span class="fl">180</span>, max <span class="op">=</span> <span class="fl">180</span><span class="op">)</span>,</span></span>
<span class="r-in"><span> 