---
layout: example
title: Nested Bar Chart Example
permalink: /examples/nested-bar-chart/index.html
spec: nested-bar-chart
image: /examples/img/nested-bar-chart.png
---

This nested bar chart depicts aggregated values across multiple categories. The input data is subdivided according to two fields (with uneven category membership). Each sub-group is then aggregated to show the average value of a third, quantitative field.

{% include example spec=page.spec %}
