javascript 我可以在 Highcharts 图表中添加一条“平均”线吗？
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Can I add an "average" line to Highcharts Chart?
提问by Ryan McClure
I'm trying to recreate a chart (the one below) using Highcharts. I'm using a basic bar chart, and I'm wondering if there is a way to get a vertical line showing the average of all the bars? I have the value calculated, I just need it to display as the picture shows. Can I do this using Highcharts?
我正在尝试使用Highcharts重新创建图表（下面的图表）。我使用的是基本条形图，我想知道是否有办法获得一条显示所有条形平均值的垂直线？我已经计算了值，我只需要它如图所示显示即可。我可以使用 Highcharts 做到这一点吗？
回答by Halvor Holsten Strand
Yes. You can add it as a plotline, like this:
是的。您可以将其添加为情节线，如下所示：
yAxis: {
// ...Options
plotLines: [{
color: 'red',
value: '15', // Insert your average here
width: '1',
zIndex: 2 // To not get stuck below the regular plot lines
}]
}
See this JSFiddle demonstration.
请参阅此 JSFiddle 演示。
