To display a surface plot for a factorial designmain topic see also
To display a surface plot for a factorial design1 Choose Stat > DOE > Factorial > Surface Plot.
2 In Response, choose the response variable for the Z axis.
3 Under Variables, in Y Axis, choose the variable variable for the Y axis.
4 Under Variables, in X Axis, choose the variable variable for the X axis.
5 If you like, use any dialog box options, then click OK.