Re: print command

Hello:

al davis escribió:
> On Friday 11 December 2009, Thiago de Paiva wrote:
>> I want to put, at same place, current and voltage graph.
>>  Current is much smaller then voltage, then I want to
>>  multiply the value of current by 50, because this way I can
>>  see both as well as. Is there a manner to do it directly
>>  from gnucap command? Something like "print ac v(vl)
>>  50*i(rl)"?
>>
> 
> No.  not yet.
> 
> The print (also plot, probe,store, alarm) statements do not take 
> expressions.  It will some day, but not now.
> 
> I have always thought of things like that as belonging in the 
> viewing and postprocessing software, but most of the viewing 
> software is fairly simple.
> 
> I think if you are using gnuplot, you can do that in the gnuplot 
> command.

Or with octave:

octave:10> I_rl_50 = I_rl .* 50

Note the dot (.), is for octave not multiply a vector I_rl (1,X) by a 
vector (1,1); in this way you multiply 50 for each one of the I_rl 
vector componets, that is you want.

Other people use Python with scypy/pylab extension.

I remember time ago I need to graph a simulation with voltage and 
current values. I could obtain two differents axis in plot:

grafica2=[tiempo,int_colector];
%
__gnuplot_set__ ytics nomirror
__gnuplot_set__ y2tics
__gnuplot_set__ arrow
__gnuplot_set__ title '"Conmutación Vce - Ic"'
%
__gnuplot_plot__ grafica1 axis x1y1 title "Vce", grafica2 axis x1y2 
title "Ic"
%

"grafica1" and "grafica2" are the waves to plot. There was for a Octave 
2.9 version, I believe that Octave 3.X not admit these commands now, but 
if you see there are gnuplot commands. Try to look for documentation.

There are many ways how you see.

Salud y Revolución.

Lobo.
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