Re: [Gnuplot-info] multiple axis with constraint

[Martin G. <mg...@lb...>]

Hi Hernán:

First of all, many thanks for your help.

On 09/26/2011 06:19 PM, Hernán Gonzalo Asorey wrote:
> On Mon, Sep 26, 2011 at 21:30, Martin Genet <mg...@lb... <mailto:mg...@lb...>> wrote:
>
>     I have a system with two inputs (i1 & i2), and one output (o).
>     The two parameters are linked by some kind of constraint (c(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.
>
> 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)"

However, the problem I see here is that there is no "mapping" between x1 et x2 axis, though x2 axis should be a transformation of x1 axis through c constraint. Is there a way to put, for each label of x1 axis, a corresponding label in x2 axis?

Thanks again,
Martin.