num  sl  fl  tl wght        ws        wr</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 1      100 126 152 157   92  80.83571 113.81109</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 20     290 124 148 153   86  74.20562 115.89419</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 40     490 169 201 210  236 212.06997 111.28402</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 60     690 175 215 221  277 251.19141 110.27447</span>
<span class="r-out co"><