Re: [Gnuplot-info] multiple axis with constraint

[Hernán G. A. <as...@gm...>]

On Mon, Sep 26, 2011 at 21:30, Martin Genet <mg...@lb...> wrote:

> Dear GNUPlot:
>
> I have a system with two inputs (i1 & i2), and one output (o).
> The two parameters are linked by some kind of constraint (c1(i1, i2) = 0).
> I have data in the following format: #i1 i2 o.
> Of course, I can easily plot o(i1) and o(i2).
> I would like to create a plot where I have i1 in x1 axis, and corresponding
> i2 in x2 axis, while having o in y1 axis.
>

Hi!

perhaps this:

set x2tics
set xtics nomirror
set xlabel "i1"
set x2label "i2"
set ylabel "o"
plot 'myfile' u 1:3 w l t "o(i1)", '' u 2:3 axes x2y1 t "o(i2)"

hope this help. See help axes for further info.

 cheers,

Hernán

Another way to say it is to have, for each tick in x1 representing i1/i2,
> the corresponding tick in x2 representing i2/i1 (constraint c1 is fairly
> easy to solve analytically).
> Does it make sense to anyone?
>
> Thanks i advance for your help.
> Martin.
>
>
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