p">=</span> <span class="st">"line_id"</span>, x <span class="op">=</span> <span class="st">"x"</span>, y <span class="op">=</span> <span class="st">"y"</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   line_id geometry</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 1       1     1, 2</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 2       2     2, 1</span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span