Bar graph design problem

[#1]

I have created a bar graph in which green are positive value and red are negative value.i want to put a line in middle,so that it will look like red are in downward and green are in upward direction.

[#2 · Accepted solution]

Go to your chart properties and go to the tab 'presentation'. Then at the right press 'add' next to the middle white field. A new screen will pop-up. Then put your number where the line must be in the expression field. In your case it will be the number 0.

[#3]

Thanks a lot dbuijsman .In the same way if i want to add a vertical line in the 0 position means how to do.in the axes tab i have checked the hide axes.