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Biometrika 1992 79(1):195-198; doi:10.1093/biomet/79.1.195
© 1992 by Biometrika Trust
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MISCELLANEA

Weighted log rank statistics for comparing two distributions

THIERRY MOREAU1, JEAN MACCARIO2, JOSEPH LELLOUCH3 and CATHERINE HUBER4

1Institut National de la Santé et de la Recherche Médicale U 169, 16 Avenue P. V. Couturier, 94807 Villejuif Cedex, France
2Centre d'Etudes Pharmaceutiques 12 rue J. B. Clément, 92296, Chatenay-Malabry Cedex, France
3Institut National de la Santé et de la Recherche Médicale U 169, 16 Avenue P.V. Couturier, 94807 Villejuif Cedex, France
4Laboratoire de Statistique Médicale, Université de Paris V 45 rue des Saints-Pères, 75006 Paris, France

The derivation of locally most powerful rank statistics for comparing two censored samples against parametric alternatives is reformulated for more general classes of alternatives. A particular class is considered, which includes the case of two weibull distributions differing in shape parameter.

Key Words: Censored data • Locally most powerful rank tests • Survival analysis • Weibull distribution


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