Use a 3D surface plot to see how a response variable relates to two predictor variables. A 3D surface plot is a three-dimensional graph that is useful for investigating desirable response values and operating conditions.
The peaks and valleys correspond with combinations of x and y that produce local maxima or minima. Minitab uses interpolation to create the surface area between the data points. For more information, go to Working with mesh on contour plots and 3D graphs.
Rotate the graph to view the surface from different angles. Adjust light settings to better visualize the peaks and valleys of the surface. For more information, go to Viewing 3D surface plots and 3D wireframe plots.