DOE Center Point

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Center Point


Center point runs are sometimes included in a Two-Level Factorial Design to estimate curvature (the departure from a linear relationship between the Response and the Factors), to obtain degrees of freedom for an estimate of background noise, and to check on consistency of the basic process during the course of an experimental study.


DOE Center Points

Reference: Understanding Industrial Experimentation


A. Run number. Factors, or independent variables. High and low levels of the Factors. Center points for the factors, values that are mid-point between the high and low settings. Center points are chosen for each Factor separately, and should be randomly distributed throughout the runs.

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