Re: [Help-gnucap] (newb) Plotting output

[Russell Shaw]

Johnathan Corgan wrote:
> On Thursday 22 July 2004 08:58 am, Russell Shaw wrote:
>
> > I've just tried gnucap and gnuplot.
> >
> > The output table from gnuplot is like:
> >
> >  10.K       0.74025   -2.6125
> >  12.589K    0.81827   -1.7421
> >  15.849K    0.87684   -1.1416
> >  19.953K    0.91847   -0.73871
> >
> > in gnuplot, i did:  plot "hpf.dat" using 1:2
> >
> > however, gnuplot seems to ignore the K multiplier
> > in the first column.
>
>
> I'm not positive, but I don't think gnuplot can parse the multiplier in 
> question.
>
> Instead, you'll need to use the Basic option in gnucap, to force 
> scientific notation output.  See section 1.5 of the user manual.
>
> It may even be the case that if you use the ">" redirect for print 
> output, it defaults to the Basic style output, but I'm not sure of this 
> offhand.
>
> -Johnathan

I formatted it with ed:

#!/bin/sh
gnucap -b "hpf.ckt" > "hpf.dat"
ed "hpf.dat" << .
H
1,/^#Freq/-1d
%s/K/1e3/g
%s/u/1e-6/g
%s/Meg/1e6/g
wq /tmp/dat$$
.

cat > /tmp/gplot$$ << .
set logscale xy
plot "/tmp/dat$$" using 1:2
pause -1 "Hit CR to end"
.

gnuplot /tmp/gplot$$

rm /tmp/dat$$ /tmp/gplot$$