bility with dataset organization.  Use your own structures and describe their shape via accessor functions.
                    </a>
                </li>
                <li>
                    <a href="api.html#layers">
                        Layering mechanism for composability of different data in the same chart.
                    </a>
                </li>
                <li>
                    <a href="api.html#selection_options">
                        Compatible with animation for linked and 