score:20

Accepted answer

If you want to delete some points from your serie I sugest you to store your serie points, remove the points you want and then use setData to set your serie data again.

If you want to remove all points without remove the serie you can use chart.series[0].setData([]);.

You can use addPoint to add points one by one or setData for more than one.
There're some examples which shows how to do it.
demo
reference


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