Adjust the mesh resolution for model-based plots

Minitab establishes a series of regular x- and y-values, called a mesh, then plots the response (z) values at the x-y intersections of the mesh. By default, Minitab uses a 15 x 15 mesh; however, you can edit your mesh to see higher or lower resolution to the fitted surface.

Under Mesh for Interpolating Surface, choose Custom, then enter numbers for the x-mesh and y-mesh for the resolution of mesh you want. The following plots show different mesh resolutions.
5 by 5 mesh (wireframe)
15 by 15 mesh (wireframe)
5 by 5 mesh (contour plot)
15 by 15 mesh (contour plot)
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