I have to display a line graph in Crystal Report , of data corresponding to a range of dates (with the dates along the X axis).

I need to show a continous line graph even when I do not have data for certain dates,eg say for 3rd Oct  I have 20 tickets and 4th I have no tickets and 5th I have 100 tickets.

How do i ensure that even for dates where there is no data a continuous line is displayed??

Please help