/utils/topics/data'>data</a></span>(<span class='no'>stress</span>)
<span class='fu'><a href='https://www.rdocumentation.org/packages/utils/topics/head'>head</a></span>(<span class='fu'><a href='https://www.rdocumentation.org/packages/base/topics/as.data.frame'>as.data.frame</a></span>(<span class='no'>stress</span>))</div><div class='output co'>#&gt;   id score treatment exercise age
#&gt; 1  1  95.6       yes      low  59
#&gt; 2  2  82.2       yes      low  65
#&gt; 3  3  97.2       yes      low  70
#&gt