A Graph for Two Training Samples in a Discriminant Analysis

Wei‐Chien Chang

Journal of the Royal Statistical Society Series C, 1987, vol. 36, issue 1, 82-91

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.

Date: 1987
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