Qucs/gnucsator: Parameter sweeps

On Sun, Sep 26, 2021 at 10:12:46AM -0700, Dow Drake wrote:
> I can't seem to get parameter sweeps working.  Looking at
> cmd_wrapper.cc, maybe only S-parameter sweeps have been implemented so
> far.

Better look at tests/*, they should give both an idea of what is
implemented, how to use it and what to expect. Untested stuff is often
broken...

> I've tried voltage sweeps and resistor sweeps using linear, log
> and list options.  I'm attaching a simple example: a resistor sweep
> for a voltage divider.

Qucs makes sweeps look like parameter sweeps. But as far as Gnucsator
goes, they are component value sweeps (as in DC sweep). For technical
reasons, sweep parameter name and sweep device name need to match so
Qucsator and Gnucsator outputs match.

Not obvious how to proceed, but please try and see if you can solve it.