l">10</span><span class="op">)</span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span>    first_column second_column third_column</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 1           nbm             7           14</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 2           k3N             7           14</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 3           uVO             8           16</span>
<span class="r-out co"><span class="r-pr">#&gt;