How do you choose the X axis in ABAQUS CAE?

[rm447]

Hi, I am trying to plot stress vs. strain values in ABAQUS CAE but ABAQUS keeps plotting them versus "time". How can I choose my own X axis? I don't seem to be able to figure this out even though it must be very trivial!! I will appreciate your help!!
Thanks

 

[xerf]

You plot each of them vs. time and then you create a 3rd XYData using operate on XYData, combine (). This will give you stress vs strain.