我有由正值和负值组成的数据，这些数据将显示在图表中。我试图以正值的数据点大于负值的数据点的方式显示数据。以下是我的代码
<html>
<head>
<script src="http://code.highcharts.com/highcharts.js"></script>
<script src="http://code.highcharts.com/modules/exporting.js"></script>
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
</head>
<body>
<div id="demochart"></div>
<button id="update"> Update</button>
<script>
Highcharts.chart('demochart', {
chart: {
type: 'scatter'
},
xAxis: {
categories: [0, 10, 20, 30, 40, 50, 60, 70, 80]
},
series: [{
name: 'Temperature',
data: [15, 50, -56.5, -46.5, -22.1, -2.5, -27.7, -55.7, 76.5]
}]
},function(chart){
$('#update').click(function(){
var data = chart.series[0].data;
var new_array = [];
new_array = data;
console.log(new_array);
for(var i = 0; i < new_array.length; i++){
console.log("For: "+ new_array[i].y);
if(new_array[i].y > 0){
new_array[i].y = "{y:"+ new_array[i] +",marker: {radius: 10}}"
console.log("If: "+ new_array[i].y);
}else{
new_array[i].y = "{y:"+ new_array[i] +",marker: {radius: 4}}"
console.log("Else: "+ new_array[i].y);
}
}
chart.series[0].setData(new_array);
})
});
</script>
</body>
</html>
当我单击更新按钮时，必须更改数据点值半径的大小。这种情况能行吗？
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