an class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> a b c </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 1 2 0 </span>
<span class="r-in"><span><span class="fu">draws_mean</span><span class="op">(</span><span class="va">x</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span>    a    b    c </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  1.6  2.2 20.2 </span>
<span class="r-in"><span><span c