> 
#&gt; <span style='color: #BCBCBC;'>1</span>         1 name     score 
#&gt; <span style='color: #BCBCBC;'>2</span>         2 Matilda  <span style='color: #BB0000;'>NA</span>    
#&gt; <span style='color: #BCBCBC;'>3</span>         3 Nicholas <span style='color: #BB0000;'>NA</span>    </div><div class='input'><span class='fu'>rectify</span><span class='op'>(</span><span class='va'>y</span>, values <span class='op'>=</span> <span class='va'>int</span><span class='op'>)</span>
</div><div class='output co'>