</span><span class="op">(</span> <span class="va">x</span>, x <span class="op">=</span> <span class="st">"y"</span>, y <span class="op">=</span> <span class="st">"x"</span> <span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   id   geometry</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 1  1 2, 1, 1, 2</span>
<span class="r-in"><span><span class="fu">sf_linestring</span><span class="op">(</span> <span class="va">x</span>, linestring_id <span class="o