Statistical Papers

, Volume 46, Issue 3, pp 451–458 | Cite as

A note on D-optimal designs for models with and without an intercept

  • Kim-Hung Li
  • Tai-Shing Lau
  • Chongqi Zhang


In this paper we give a sufficient condition under which theD-optimal design for a regression model without an intercept can be obtained from theD-optimal design for the corresponding model with an intercept by simply removing the origin from its support points. Examples are given to demonstrate the applications of the results.


Optimal design Polynomial regression Product model Weighing design 


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Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • Kim-Hung Li
    • 1
  • Tai-Shing Lau
    • 1
  • Chongqi Zhang
    • 2
  1. 1.Department of StatisticsThe Chinese University of Hong KongShatin, N.T.Hong Kong
  2. 2.Department of Probability and StatisticsGuangzhou UniversityGuangzhouChina

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