.  Callbacks are called with three arguments.
The first is the data element, the second is the column index, and the third is the row index.</p>
</div>
<div class='tags'>
</div>
  </dd>
  <dt id='vis_options-variable'>
    vis_options
    =
  </dt>
  <dd>
    <pre><code class='coffeescript'>undefined</code></pre>
    <div class='docstring'>
  <p>[<a href='../../class/c3/Selection.Options.html'>c3.Selection.Options</a>] Options for any <code>vis</code> visualizations, such as inline bar charts.
Callbacks are