00</span>
<span class='r-out co'><span class='r-pr'>#&gt;</span> 2           1      150</span>
<span class='r-out co'><span class='r-pr'>#&gt;</span> 3           1      100</span>
<span class='r-out co'><span class='r-pr'>#&gt;</span> 4           1       50</span>
<span class='r-out co'><span class='r-pr'>#&gt;</span> attr(,"assign")</span>
<span class='r-out co'><span class='r-pr'>#&gt;</span> [1] 0 1</span>
<span class='r-out co'><span class='r-pr'>#&gt;</span> </span>
<span class='r-out co'><span class='