here is my jsFiddle, you can see the black line start with column center,
how to that black line at starting of bar and end it to ending of bar ?
this is a simple task to look, but try all to do it but now working.
I try it with add data value by adding [-1,7.6]
see code ::
{
name: 'Temperature',
type: 'line',
data: [[-1,7.0], 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, 26.5, 23.3, 18.3, 13.9, 9.6],
tooltip: {
valueSuffix: '°C'
},
step: 'center',
rangeSelector: {
selected: 0
}
but it show '-1' on xAxis see image
Please help :(


This requirement is complex, use this steps .
1>Use Formatter to remove -1 and 12 in xAxis
2>Disable crosshair for xAxis (I updated to false)
3>Add fake column series for point -1 and 12.
4>Disable fake series legend.
5>Disable tooltip for particular point for all series using formatter (got idea form this SO post).