s="fl">3.99</span>, <span class="fl">1.99</span><span class="op">)</span>, stringsAsFactors <span class="op">=</span> <span class="cn">FALSE</span></span>
<span><span class="op">)</span></span>
<span></span>
<span><span class="va">dat</span></span>
<span><span class="co">#&gt;         drink price</span></span>
<span><span class="co">#&gt; 1 Cold Drinks    NA</span></span>
<span><span class="co">#&gt; 2        Soda  2.99</span></span>
<span><span class="co">#&gt; 3       Water  1.99</span></span>
<span><span