Does it make sense to plot resistor current vs input voltage in this circuit?
If you have the I vs V for the Diode, all you need to do is subtract Id (Diode Current) from Iin. because:

VR = VD = Vin (parallel configuration),
and 
IR = Iin - Id

Note that Resistor I/V plot has two axis (Horizontal axis for Vr and Vertical axis for Ir) as Diode I/V has two axis  (Horizontal axis for Vd and Vertical axis for Id).
Because Vr and Vd are equal, to can simply take the Diode I/V plot and use its horizontal axis as Vr and for each point of it (i.e each Voltage value) calculate the Ir as Iin - ID