I am trying to find an average plane of a surface.
my data include X, Y, Z.
I run analyze->fit model->Y variable=Z, Model effects=X,Y.
then i choose factor profiling-> surface profiler to see the plot+ average plane.
this is my plot when i run scatterplot 3D:
![Ohad_s_0-1682244494907.png Ohad_s_0-1682244494907.png](https://community.jmp.com/t5/image/serverpage/image-id/52238i57FCB190E442C389/image-size/medium?v=v2&px=400)
and this is my plot when i run fit model:
![Ohad_s_1-1682244561917.png Ohad_s_1-1682244561917.png](https://community.jmp.com/t5/image/serverpage/image-id/52239iE0B04F36A803CAB5/image-size/medium?v=v2&px=400)
there is some transformation that change my data from dome to cylinder.
any idea what to do?