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Projection indices and multimodality for mixtures of normal distributions

✍ Scribed by G. Eslava; F.H.C. Marriott

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
179 KB
Volume
43
Category
Article
ISSN
0167-7152

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✦ Synopsis

Projection pursuit indices are intended to give 'interesting' one-or two-dimensional projections of data points in higher-dimensional spaces. This paper compares the performance of seven such indices. They are all minimum for a normal distribution, and are standardized to be zero for that case. They are compared by considering projections of a mixture of four trivariate spherical normal distributions with means at the vertices of a regular tetrahedron.

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