ed names (e.g. X1, X2, X3, etc.).</p>
<div class="sourceCode" id="cb13"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">vehicles_skip</span> <span class="op">&lt;-</span> </span>
<span><span class="fu"><a href="https://rdrr.io/r/base/data.frame.html" class="external-link">data.frame</a></span><span class="op">(</span></span>
<span>  stringsAsFactors <span class="op">=</span> <span class="cn">FALSE</span>,</span>
<span>                X1 <span class="op">=</span> <span c