What points can I use in a designed experiment?

The following table describes different types of points in a designed experiment:
Point Screening Designs Factorial Designs Response Surface Designs Mixture Designs
0 center point center point center point centroid
1 corner point corner point (cube point) cube point (corner point) vertex
-1 - - axial point axial point
2 edge midpoint* - edge midpoint** edge midpoint (double blend)
3 - - - triple blend***

*Applies only to definitive screening designs.

**Applies only to Box-Behnken designs.

***In mixture designs, the point type increases naturally (or respectively) with higher order blends.

By using this site you agree to the use of cookies for analytics and personalized content.  Read our policy