Equiradial designs under changing axial distances, design sizes and varying center runs with their relationships to the central composite designs

  • Abstract
  • Keywords
  • References
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  • Abstract

    In assessing the preferences of equiradial designs based on design size, axial distance and number of center points in relation to the central composite designs, D-absolute deviation (D-AD) and G-absolute deviation (G-AD) are proposed as new design measures of closeness of experimental designs. Each absolute deviation is positive or zero. The G-absolute deviation is zero or approximately zero at  equals 1 center point. For  greater than 1, G-absolute deviation decreases for increasing values of . On the other hand, the D-absolute deviation decreases as the design size increases. Designs having G-AD values of zero or approximately zero are identical or near identical in G-optimality properties. Also, designs having D-AD values of zero or approximately zero are identical or near identical in D-optimality properties. It is conjecturally hoped that at some increased design size, the equiradial designs and the central composite designs, having same axial or radial distance will coincide (be identical) in their properties, with D-AD value of zero or approximately zero.

  • Keywords

    Equiradial Design; Central Composite Design; Axial Distance; Design Size; Center Point; D-Absolute Deviation; G-Absolute Deviation.

  • References

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Article ID: 7701
DOI: 10.14419/ijasp.v5i2.7701

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