Statistical Methods and Applications

, Volume 13, Issue 2, pp 139–150 | Cite as

A general algorithm to fit constrained DEDICOM models

  • Roberto Rocci


The DEDICOM model is a model to analyze square tables describing asymmetric relationships among n entities. Its importance in the asymmetric multidimensional scaling literature is due to the fact that several authors showed a large class of models to be simply a constrained version of DEDICOM. A typical example is the Generalized GIPSCAL proposed by Kiers & Takane. In this paper we present a new algorithm capable to fit, in the least squares sense, any DEDICOM constrained model.


Asymmetric multidimensional scaling DEDICOM model penalized least squares 


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Copyright information

© Springer-Verlag Berlin/Heidelberg 2004

Authors and Affiliations

  1. 1.Dip. SEFeMEQUniversity of Rome “Tor Vergata”Italy

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