[Gnuplot-info] multiple axis with constraint

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

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.
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.