How can I plot three variables in one 3D graph from two 2D graphs ?

3 variables x, y and z. I have two 2D graphs. The first 2D graph is obtained by keeping the 'x' constant and varying the 'y', as result, variation of 'z' as a function of 'y' with 'x' is constant. The second 2D graph is obtained, this time, by keeping the 'y' constant and varying the 'x', as result, variation of 'z' as a function of 'x' with 'y' is constant. Now, I want to plot the variation of the 3 variables x,y and z in a single 3D graph. Could you help me please?

Answer 1

[Star Strider]

See if the plot3 (link) function or similar (such as scatter3 or stem3) will do what you want.

Example —

figure
scatter3(x, y, z)
grid on

[omar diouri]

Thank you for your response. As I told in the description, for exemple, I fixed x and I varied z as function of y. After that, I fixed y and I varied z as function of x. As in attached file, you will find two table with values of x, y and z.

[Star Strider]

My pleasure.

First, my original Answer is still appropriate.

Second, if you have your original data without the ‘fixed’ values, plot those using plot3. You can also plot the data in the image using plot3 or other appropriate functions.

Third, I cannot do anything with an image of data or code.

[omar diouri]

Yes, you are right. Thank you very much.

[Star Strider]

As always, my pleasure.