Hi there,
Thank you for contacting us.
I am not sure what you mean by
'result is given by average' and
'sum result'.
Range selector by default shows you the data i.e
3 months,
6 months back from the last data point. So for example, 6 months would be from
December 28th to
June 28th.
Could you explain it a bit further, and more importantly show me the result in a live code editor such as JSFiddle?
In the meantime, take a look at the given links, maybe you'll get some inspiration!
https://www.highcharts.com/demo/stock/basic-line
https://www.highcharts.com/docs/stock/range-selector
https://api.highcharts.com/highstock/rangeSelector
Waiting for your reply,
Best regards!