Factorial Design - Designs (specify generators)
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Stat > DOE > Factorial > Create Factorial Design > choose 2-level factorial (specify generators) > Designs

Allows you to select a design, and add center points and replicates.

Dialog box items

The list box at the top of the Design subdialog box shows all available designs for the number of factors you selected in the main Create Factorial Design dialog box. Highlight your design choice. The design you choose will affect the possible choices for the options below. You cannot specify generators to add factors to a 1/16th fraction of a 7-factor design or a 1/2 fraction of a 3-factor design because such designs confound main effects.

Number of center points per block: Specify the number of center points to be added per block to the design. When you have both text and numeric factors, there really is no true center to the design. In this case, center points are called pseudo center points. See Adding center points for a discussion of how Minitab handles center points.

Number of replicates for corner points: Enter the number of replications of each corner point. Center points are not replicated.

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