Séminaire Lotharingien de Combinatoire, B22n (1989), 8 pp.
[Formerly: Publ. I.R.M.A. Strasbourg, 1990, 414/S-22, p. 155-162.]

Norbert Spangenberg and Karl Erich Wolff

Comparison between Principal Component Analysis and Formal Concept Analysis of Repertory Grids

Abstract. We give a first comparison between the Principal Component Analysis PCA ("one of the oldest and best known techniques of multivari- ate analysis" according to I.T. Jolliffe) and a very young algebraic technique for the visualization of data namely the Formal Concept Analysis FCA by applying both methods to Repertory-Grid-Tests. We demonstrate the efficiency of these methods using the a particular grid of a 24 years old patient suffering from bulimia nervosa.

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