Michael Howe - 2013-09-18

I'm using a sine source at 1KHz across an RC series chain and node "out" across C, sweeping C over 10 values. I want a plot of the peak output voltage (y-axis) against the swept values of C (x-axis) at a single frequency (1kHz). I'm using Transient and Sweep simulators and have tried an equation function PlotVs(out.Vt,Cvar) which gives the correct axes but plots values I don't understand. Can anyone help here? I cant see any way of doing this.