https://rdrr.io/r/base/mean.html'>mean</a></span>(<span class='no'>x</span>, <span class='kw'>na.rm</span> <span class='kw'>=</span> <span class='fl'>TRUE</span>)
  ))

<span class='co'># The spec is a little easier with data like Scorecard where</span>
<span class='co'># .i and .t uniquely identify observations</span>
<span class='co'># so .resolve isn't needed.</span>
<span class='fu'><a href='https://rdrr.io/r/utils/data.html'>data</a></span>(<span class='no'>Scorecard</span>)
<span class='fu'><a href='h