Abstract
A test of uniformity on the shape space Sigma(m)(k) is presented, together with modifications of the test statistic which bring its null distribution close to the large-sample asymptotic distribution. The asymptotic distribution under suitable local alternatives to uniformity is given. A family of distributions on Sigma(m)(k) is proposed, which is suitable for modelling shapes given by landmarks which are almost collinear. (C) 2003 Elsevier Inc. All rights reserved.
Original language | English |
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Pages (from-to) | 163-176 |
Number of pages | 14 |
Journal | Journal of Multivariate Analysis |
Volume | 88 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2004 |
Keywords
- generalized Bartlett correction
- locally most powerful invariant test
- nearly collinear shape
- reflection shape
- score test
- uniform distribution
- STATISTICS
- MANIFOLD