span class="op">(</span><span class="va">Sepal.Length</span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span>    Sepal.Length Sepal.Width Petal.Length Petal.Width   Species</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>           &lt;num&gt;       &lt;num&gt;        &lt;num&gt;       &lt;num&gt;    &lt;fctr&gt;</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 1:          7.9         3.8          6.4         