A grouped Horizontal Bar chart

This Horizontal Bar chart demonstrates the marginInner and marginInnerGrouped settings. The marginInner is either side of the group of bars whilst marginInnerGrouped is between the bars in that group.

It also demonstrates inverted highlighting.

[No canvas support]

This goes in the documents header: 
<script src="RGraph.common.core.js"></script>
<script src="RGraph.common.dynamic.js"></script>
<script src="RGraph.common.tooltips.js"></script>
<script src="RGraph.common.key.js"></script>
<script src="RGraph.hbar.js"></script>
Put this where you want the chart to show up: 
<canvas id="cvs" width="600" height="600">
    [No canvas support]
</canvas>
This is the code that generates the chart: