Local influence assessment in the growth curve model with unstructured covariance

Jian-Xin Pan, Kai-Tai Fang, Dietrich von Rosen*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

18 Citations (Scopus)


In this paper, a local influence approach is employed to assess adequacy of the growth curve model with an unstructured covariance, based on likelihood displacement. The Hessian matrix of the model is investigated in detail under an abstract perturbation scheme. For illustration, covariance-weighted perturbation is discussed and used to analyze two real-life biological data sets, which show that the criteria presented in this article are useful in practice.

Original languageEnglish
Pages (from-to)263-278
Number of pages16
JournalJournal of Statistical Planning and Inference
Issue number2
Publication statusPublished - 15 Aug 1997

Scopus Subject Areas

  • Statistics and Probability
  • Statistics, Probability and Uncertainty
  • Applied Mathematics

User-Defined Keywords

  • Curvature
  • Growth curve model
  • Hessian matrix
  • Likelihood displacement
  • Local influence
  • Perturbation
  • Statistical diagnostic


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