Re: [Help-gnucap] Problems using measure command

[Rubén Gómez Antolí]

Hello:

al davis escribió:
> On Wednesday 02 December 2009, Rubén Gómez Antolí wrote:
> > I think that I miss something using measure command.
> > I follow Gnucap's wiki manual:
> > http://gnucap.org/dokuwiki/doku.php?id=gnucap:manual:commands:measure
> >
> > I want to get the RMS value of a signal in a circuit, for it
> >  I do:
> >
> > gnucap> probe tran i(RMEASA)
> > gnucap> tran 0 10ms 50us uic
> > #Time       i(RMEASA)
> >   0.         0.
> >   50.u       0.0020859
> >   100.u      0.0033786
> >   150.u      0.0041567
> >   200.u      0.0046241
> >   250.u      0.0049039
> >   300.u      0.0050698
> >   350.u      0.0051667
> >
> > (...)
> >
> >   0.0099    -0.0053322
> >   0.00995   -0.0053357
> >   0.01      -0.0053384
> > gnucap> measure eficaz = rms(probe="i(RMEASA)")
> > no match: i(RMEASA)
>
> Thanks for the comments .. the documentation needs improvement.
>
> I have made some changes to the documentation to try to clarify this.
> Look again.  Hopefully it is better now.
>
> http://gnucap.org/dokuwiki/doku.php?id=gnucap:manual:commands:measure

I try now and run ok, thanks.

There are anyway to obtain a RMS wave output (with a control structure, 
specific print sintaxis or anything)?

Something that next (for control structure):

.control
i=0
while i<=end_tran_time do
	measure rms_wave = rms(probe="signal(output)" begin=i 				+ 
end=time_step_a)
        eval rms_vawe >> wave_file
        i= i+ time_step
        time_step_a = time_step_a + time_step
.end_control

I have still hope to not write a octave or python function for made 
this. Should be more easy write a rms wave plugin?

Salud y Revolución.

Lobo.
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