score:2

Accepted answer

It is not possible in Highcharts, but in Highstock it is. There's the option dataGrouping which you can put on plotOptions:

plotOptions: {
    column: {
        dataGrouping: {
            forced: true,
            units: [['month', [1]]]
        }
    }
}

This will force the chart to group the data in every 1 month. But using Highstock will change most of your options, which you can change back.

Here's what it will look like after changing all the options: jsfiddle

As I've said there are lots of options that you have to change for it to look like the same, such as legend, rangeSelector, navigator, yAxis.opposite and scrollbar.


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