A combined bar/line chart

[No canvas support]

This goes in the documents header:
<script src="RGraph.common.core.js"></script>
<script src="RGraph.line.js"></script>
<script src="RGraph.bar.js"></script>
Put this where you want the chart to show up:
<canvas id="cvs" width="600" height="250">
    [No canvas support]
</canvas>
This is the code that generates the chart:
<script>
    window.onload = function ()
    {
        /**
        * Create the data and colors
        */
        var barData = [];
        var lineData = [];
        var colors = [];
        for (var i=0; i<60; ++i) {
            if (i < 30) {
                barData[i] = RGraph.random(-100, 0);
                colors[i] = '#318CBD';
            } else {
                barData[i] = RGraph.random(0, 100);
                colors[i] = '#BD3929';
            }
            
            lineData[i] = (((i/60) * 200) - 100) * RGraph.random(0, 10);
        }



        var bar = new RGraph.Bar({
            id: 'cvs',
            data: barData,
            options: {
                shadowBlur: 1,
                shadowOffsetx: 1,
                shadowOffsety: 1,
                hmargin: 1,
                gutterLeft: 35,
                colors: colors,
                colorsSequential: true,
                xaxispos: 'center',
                backgroundGridVlines: false,
                backgroundGridBorder: false,
                noyaxis: true,
                ymax: 100,
                gutterBottom: 50,
                strokestyle: 'rgba(0,0,0,0)',
                textAngle: 30,
                xlabelsOffset: 8,
                labels: [
                    '1987', '\n1988','1989','\n1990','1991',
                    '\n1992', '1993','\n1994','1995','\n1996',
                    '1997', '\n1998','1999','\n2000','2001',
                    '\n2002','2003','\n2004','2005','\n2006',
                    '2007','\n2008','2009','\n2010','2011',
                    '\n2012','2013','\n2014','2015','\n2016'
                ],
                textAccessible: true
            }
        })




        /**
        * Now add the line chart
        */
        var line = new RGraph.Line({
            id: 'cvs',
            data: lineData,
            options: {
                colors: ['#FFD600'],
                xaxispos: 'center',
                linewidth: 2,
                shadowOffsetx: 0,
                shadowOffsety: 0,
                shadowBlur: 5,
                tickmarks: false,
                gutterLeft: 35
            }
        })
        
        /**
        * Create the combined class
        */
        combo = new RGraph.CombinedChart([bar, line]);
        combo.draw();
    };
</script>

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