How to always show the plotLine in HighCharts?

Question

I am creating a HighChart with a plotLine in it. The plotLine has a fixed value, while the data can vary between charts.

HighChart scales the y-axis automatically ba

Answer 1

One other option that does not introduce data points:

yAxis: {
    minRange:450,
    min:0,
    plotLines:[{
        value:450,
        color: '#ff0000',
        width:2,
        zIndex:4,
        label:{text:'goal'}
    }]
},

This sets the minimum for the yAxis to 0 (this is unlikely to be false in this case) and the minimum Range to 450.

See updated fiddle.