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A Graph for Two Training Samples in a Discriminant Analysis

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  • Wei‐Chien Chang

Abstract

A graph which succinctly displays the separation between two training samples is presented. On one coordinate, the differences mainly due to the sample means are displayed; on the other coordinate, the separation solely due to the covariance matrices is shown. A straight line can be drawn to show the separation of the two samples on this graph. This contrasts with Sammon's graph in which both coordinates display the differences mainly due to the saple means. Artificial and real examples are provided to show that the proposed graph can be quite informative in the data analysis of the training samples.

Suggested Citation

  • Wei‐Chien Chang, 1987. "A Graph for Two Training Samples in a Discriminant Analysis," Journal of the Royal Statistical Society Series C, Royal Statistical Society, vol. 36(1), pages 82-91, March.
    • Handle: RePEc:bla:jorssc:v:36:y:1987:i:1:p:82-91
    DOI: 10.2307/2347847
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    Cited by:

    1. Velilla, Santiago, 2010. "On the structure of the quadratic subspace in discriminant analysis," Journal of Multivariate Analysis, Elsevier, vol. 101(5), pages 1239-1251, May.

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