V3: Radar chart

HTML

<script src="http://www.amcharts.com/lib/3/amcharts.js"></script>
<script src="http://www.amcharts.com/lib/3/radar.js"></script>
<div id="chartdiv" style="width: 100%; height: 362px;"></div>

JavaScript

var chart;

var chartData = [
    {
        "country": "Czech Republic",
        "litres": 156.9,
        "test": 0.2
    },
    {
        "country": "Ireland",
        "litres": 131.1,
        "test": 0.3,
    },
    {
        "country": "Germany",
        "litres": 115.8,
        "test": 0.8
    },
    {
        "country": "Australia",
        "litres": 109.9,
        "test": 0.7
    }
];

AmCharts.ready(function () {
    // RADAR CHART
    chart = new AmCharts.AmRadarChart();
    chart.dataProvider = chartData;
    chart.categoryField = "country";
    chart.startDuration = 2;
    
    // VALUE AXIS
    var valueAxis = new AmCharts.ValueAxis();
    valueAxis.axisAlpha = 0.15;
    valueAxis.minimum = 0;
    valueAxis.dashLength = 3;
    valueAxis.axisTitleOffset = 20;
    valueAxis.gridCount = 5;
    chart.addValueAxis(valueAxis);
    
    var valueAxis1 = new AmCharts.ValueAxis();
    valueAxis1.axisAlpha = 0.15;
    valueAxis1.minimum = 0;
    valueAxis1.axisColor = "#B0DE09";
    valueAxis1.dashLength = 3;
    valueAxis1.axisTitleOffset = 20;
    valueAxis1.gridCount = 3;
    chart.addValueAxis(valueAxis1);
    
    // GRAPH
    var graph = new AmCharts.AmGraph();
    graph.valueAxis = valueAxis;
    graph.valueField = "litres";
    graph.bullet = "round";
    graph.balloonText = "[[value]] litres of beer per year";
    chart.addGraph(graph);
    
    var graph1 = new AmCharts.AmGraph();
    graph1.valueAxis = valueAxis1; // we have to indicate which value axis should be used
    graph1.valueField = "test";
    graph1.bullet = "round";
    graph.balloonText = "[[value]]";
    chart.addGraph(graph1);
    
    // WRITE
    chart.write("chartdiv");
});