class='op'>=</span> <span class='id identifier rubyid_delta'>delta</span>
  <span class='kw'>end</span>

  <span class='ivar'>@averages</span><span class='lbracket'>[</span><span class='id identifier rubyid_label'>label</span><span class='rbracket'>]</span><span class='lbracket'>[</span><span class='symbol'>:count</span><span class='rbracket'>]</span> <span class='op'>+=</span> <span class='int'>1</span>
<span class='kw'>end</span></pre>
    </td>
  </tr>
</table>
</div>
    
      <div class="method_detail