If your X axis is fixed, then you can do your x series at 0,1,2,3,4,5 separated by pilcrows.
To achieve something similar to what you show in your PDF though, each Y series would have to contain a delimited list of values between the start and end of the range. EG if you had one vector from 0-4, you would need to enter a data set of 0,1,2,3,4 (separated again by pilcrows).
Sooner though, you'll run into the limitations of graph formatting in filemaker, as in you really can't style the lines in the line chart at all.
I've attached a quick sample of this type of graph as a native filemaker chart object. If you want something nicer looking, there are still a number of image and webviewer based charting solutions that integrate into filemaker with more fine control over the appearance.
Here's a few I've heard of:
chart.fmp12.zip 65.5 K