Hi, I'm running a simulation on PSPICE in which I am trying to plot Vce against Ic for various base currents of a transistor, and I therefore need to have multiple data sets on one graph. I've managed to do this by using the DC Sweep simulation with the primary sweep on the collector resistor and a parametric sweep on the base resistor. The resulting graph does have a data set for each value of the base resistance, but I am unable to change the X variable to the collector current: it gives me a message saying "Only 1 X variable is allowed" or something like that. Is there a way round this? Thanks.