How to plot a surface from x and y having different values of z, i.e. (x,z1) and (y,z2)?
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Ismail Qeshta
on 23 Aug 2017
Commented: Ismail Qeshta
on 23 Aug 2017
Hi, I am trying to draw a surface from two sets of results, set A and set B. Each set has two columns, column 1 and column 2. I would like to plot a surface from these two sets, such that column 2 in each set is the z axis, while columns 1 in sets A and B are x and y axes, respectively.
I have attached herewith the sets of data for your kind reference.
Thank you.
2 Comments
KSSV
on 23 Aug 2017
We can comment only after looking at data....this can be a structured grid or cannot be a structured grid.....attach your data, so that we can help you.
Accepted Answer
John D'Errico
on 23 Aug 2017
Insufficient information to draw a "surface".
You have essentially marginal data, in the sense of a marginal distribution. So for each point, you have x and z, or y and z.
But a surface requires that for ANY combination of x AND y, you can produce a value of z. So for any point in the first set, you know what value of x produced a value z. But you provide no information about the y that was used, even if only implicitly. So all the y data is missing there. The same applies to the second set. x is completely missing.
So, sorry, but you have insufficient information to generate the surface between those axes. It could do anything you wish to imagine for some combination of both x and y. But since there is no hint as to what it does do, you are stuck. You cannot infer a complete surface.
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