Hi, Sadananda -
I don't believe I've ever used a DataWindow graph outside of a classroom setting. However, I see in the PB Help that the Axis MinimumValue and MaximumValue properties can be an expression.
As a possible workaround, maybe add four numeric retrieval argument values to the DataWindow (not to be used in the data retrieval) named, say as "XAxisMin", "XAxisMax", "YAxisMin" & "YAxisMax". Then via Edit Source if you have to, replace each of these hard-coded values with an expression that is simply the appropriate retrieval argument value, for example:
... MaximumValue="4000~tXAxisMin" ...
The value preceding the tab character is the property's default value. The expression comes after the tab character.
This should allow you to dynamically set the axis Min/Max values via retrieval arguments. Maybe it's not an ideal solution, but I hope it helps!