The following deck computes the output characteristics of a MOSFET device over the range 0-10V for VDS and 0-5V for VGS.

Example:

MOS OUTPUT CHARACTERISTICS
.OPTIONS NODE NOPAGE
VDS 3 0
VGS 2 0
M1 1 2 0 0 MOD1 L=4U W=6U AD=10P AS=10P
* VIDS MEASURES ID, WE COULD HAVE USED VDS,
* BUT ID WOULD BE NEGATIVE
VIDS 3 1
.MODEL MOD1 NMOS VTO=-2 NSUB=1.0E15 UO=550
.DC VDS 0 10 .5 VGS 0 5 1
.END