Hello @Harald Pretl, I've got some issues while simulating a DC transfer function line in ngspice in the Docker container, but in a previous version of ngspice (ver. 36) it works perfectly. The problem is that it can't store a vector from the simulation because it "doesn't exist", but if I swap the simulation line for a transient, the problem won't appear. I wanted to make sure if the problem is related just to ngspice or if it is caused by the way ngspice is installed in the container (I understand from the Dockerfile that you have another version only for the libraries). If you could help me to understand the origin of this problem, I would be very happy. Let me know if you need the file or SPICE sim code as such 😄.

Try to add the

remzerovec

command before the write command:

.control

...

save all

dc vin 0 1.8 0.01

remzerovec

write testbench.raw

...

...

.endc

Still having the problem, the message says that "no such function as dc.v or dc.v(D) is not available."

Use

dc1.v(D)

It displayed the same message but now with

dc1

@Vicente Osorio This sounds like an

ngspice

issue. Please file a ticket at https://sourceforge.net/p/ngspice/_list/tickets, the ngspice team is currently preparing the next version, and if there is a degrade in the latest version then they need to know so that they can fix it.

@Harald Pretl @Stefan Schippers Thank you for your help, I'll file a ticket.

@Vicente Osorio after the simulation is finished you can give the

display

command to see the list of saved variables. You can also give

echo $plots

to see the saved simulations. You can switch to a plot by using

setplot dc1