A non-filled Radar chart

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.effects.js"></script>
<script src="RGraph.radar.js"></script>

Put this where you want the chart to show up:

<canvas id="cvs" width="500" height="400">
    [No canvas support]
</canvas>

This is the code that generates the chart:

<script>
    new RGraph.Radar({
        id: 'cvs',
        data: [ [8,7,6,7,8,6], [8,9,4,6,6,8] ],
        options: {
            textAccessible: true,
            tooltips: [
                'Mal', 'Barry', 'Gary','Dave','Paul', 'Rich',
                'Mal', 'Barry', 'Gary','Dave','Paul', 'Rich'
            ],
            backgroundCirclesPoly: true,
            backgroundCirclesSpacing: 30,
            colors: ['transparent'],
            axesColor: 'transparent',
            highlights: true,
            strokestyle: ['red', 'black'],
            linewidth: 2,
            labels: ['', 'Barry', 'Gary','Dave','Paul','Rich'],
            labelsAxes: 'n',
            textSize: 16,
            clearto: 'white',
            labelsAxesBoxed: false,
            labelsAxesBoxedZero: false,
            textAccessible: true
        }
    }).grow();
</script>