500 150.000 335.000</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 4       wt   4   2.285727   2.200   1.513   3.190</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 5       wt   6   3.117143   3.215   2.620   3.460</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 6       wt   8   3.999214   3.755   3.170   5.424</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 7      mpg   4  26.663636  26.000  21.400  33.900</span>
<span class="r-out co"><span class="r