s="fl">1</span><span class="op">:</span><span class="fl">4</span><span class="op">]</span></span></span>
<span class="r-in"><span>  , stringsAsFactors <span class="op">=</span> <span class="cn">FALSE</span></span></span>
<span class="r-in"><span>  <span class="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co">## first-row of 'val' is kept</span></span></span>
<span class="r-in"><span><span class="fu">sf_linestring</span><span class="op">(</span> <sp