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Annotations on the Relationship Among Discriminant Functions

Author

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  • Awogbemi Clement Adeyeye

    (Department of Statistics, National Mathematical Centre, Abuja, Nigeria)

Abstract

Different forms of discriminant functions and the essence of their appearances were considered in this study. Various forms of classification problems were also considered, and in each of the cases mentioned, classification from simple functions of the observational vector rather than complicated regions in the higher-dimensional space of the original vector were made. Violation of condition of equal variance covariance matrix for Linear Discriminant Function (LDF) results to Quadratic Discriminant Function (QDF). The relationships among the classification statistics examined were established: The Anderson’s (W) and Rao’s (R) statistics are equivalent when the two sample sizes are equal, and when a constant is equal to 1, W, R and John-Kudo’s (Z) classification statistics are asymptotically comparable. A linear relationship is also established between W and Z classification statistics.

Suggested Citation

  • Awogbemi Clement Adeyeye, 2020. "Annotations on the Relationship Among Discriminant Functions," Academic Journal of Applied Mathematical Sciences, Academic Research Publishing Group, vol. 6(8), pages 161-165, 10-2020.
    • Handle: RePEc:arp:ajoams:2020:p:161-165
    DOI: 10.32861/ajams.68.161.165
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