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Journal of Applied Sciences
  Year: 2011 | Volume: 11 | Issue: 22 | Page No.: 3732-3737
DOI: 10.3923/jas.2011.3732.3737
 
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On the Preference of Replicating Factorial Runs to Axial Runs in Restricted Second-order Designs

Polycarp E. Chigbu and Emmanuel U. Ohaegbulem

Abstract:
Two variations of N-point Central Composite Designs (CCDs) which are either orthogonally or rotatably restricted are compared. The basis of variation in these designs is the common distance of the axial points from the center of the design. Using the D-optimality criterion, it is concluded that replicated cubes plus one star variation is preferable to the replicated stars plus one cube variation under both restrictions.
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How to cite this article:

Polycarp E. Chigbu and Emmanuel U. Ohaegbulem, 2011. On the Preference of Replicating Factorial Runs to Axial Runs in Restricted Second-order Designs. Journal of Applied Sciences, 11: 3732-3737.

DOI: 10.3923/jas.2011.3732.3737

URL: https://scialert.net/abstract/?doi=jas.2011.3732.3737

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