I agree with the AudioGuru. A sweep function takes one (or more) values and shows what happens if that value varies. In this case it looks like the battery is "swept" from 0 to 9 volts. I think this is not the function you want. Sorry I don't know this program.The circuit is simply a 9V battery with a 1k ohms load resistor.
The sweep might be the voltage in the battery dropping and the "curve" is the resulting reduction in the current of the circuit.
Can you help now?The problems with the images are:
1) Too small, they should be double the size posted.
2) Negative faint grey lines and letters on a black background instead of a normal positive image of black lines and letters on a white background.
3) Saved as a very fuzzy JPG file type instead of as a very clear PNG file type.
I understand you can read this picture but I can't. Where did you answer the question about what program is this?How am I supposed to fix this?
Is there any way to run this by code?(This is NGSpice engine.)I understand you can read this picture but I can't. Where did you answer the question about what program is this?
If you want help don't give out bad ratings.
View attachment 109920
On LT Spice, and others, you can change "I(V1)" to "-I(V1).
On other spices, you can change "I(V1) to I(R1). OR -I(R1) This way you are plotting the current in the resistor. OR negative current.
If I(R1) plots negative you can try removing the resistor and rotating 180 and putting it back.