- For line chart, you can hide the y axis by setting the value of yAxis.pointOnColumn, yAxis.showLabel option to false as shown below.
var options = {
...
yAxis: {
pointOnColumn: false,
showLabel: false
},
...
}
- Can control the thickness of lines by giving series.pointWidth option as below, but there is no way to change the line weight of specific series group to different.
var options = {
...
series: {
pointWidth: 1
},
...
}