'op'>(</span><span class='op'>)</span>
</div><div class='img'><img src='stat_horizon-1.png' alt='' width='700' height='433' /></div><div class='input'>
<span class='co'># Add cupoints</span>
<span class='fu'>ggplot</span><span class='op'>(</span><span class='va'>huron</span><span class='op'>)</span> <span class='op'>+</span>
  <span class='fu'>stat_horizon</span><span class='op'>(</span><span class='fu'>aes</span><span class='op'>(</span><span class='va'>year</span>, <span class='va'>level</span>, fill <spa