How to get vertical line in line chart?

[#1]

Hi,

I have a line chart with dates as the x-axis, i need to show some date (launch date) as the point where i need to show the reference line.

so how can i show that in line chart?

[#2]

You'll need to use a continuous x-axis, then the option in reference line dialog should be available to draw a vertical line at the given position.

If your dimension values don't change, you can also overlay a line object (from line/arrow chart objects).

[#3]

see this link hope this helps you

http://community.qlik.com/thread/45463