Error bar series

Error bars are a graphical representation of the variability of data and are used on graphs to indicate the error, or uncertainty in a reported measurement. 

Setting up the error bar series

In Highcharts, an error bar series is defined by setting the type to errorbar. An error bar series relates to a parent series through the option linkedTo. By default, the linkedTo option is ":previous", which means that the error bar series by default relates to the series defined before it in the source code. To use another series, the linkedTo option relates to the id option of the parent series.

series: [{
    name: 'Rainfall',
    color: '#4572A7',
    type: 'column',
    data: [
        49.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1,
        95.6, 54.4
    ]
}, {
    name: 'Rainfall error',
    type: 'errorbar',
    data: [[48, 51], [68, 73], [92, 110], [128, 136], [140, 150], [171, 179], [135, 143], [142, 149], [204, 220], [189, 199], [95, 110], [52, 56]]
}]

Styling the error bars

The different parts of the error bar anatomy can be styled individually. In a non-inverted chart, the stem is the vertical bar in the center, while the whiskers are the top and bottom lines marking the values. The lineWidth option sets the line thickness globally. The whiskerWidth and stemWidth options sets the width of the whiskers and the stem individually. For the full set of options, see plotOptions.errorbar.