Rank Test for Ordered Alternatives under Random Censorship

  • Gyu-Jin Jeong (Professor, Department of Applied Statistics, Hannam University, Taejon, 300-791, Korea) ;
  • Sang-Gue Park (Associate Professor, Department of Applied Statistics, Chung-Ang University, Seoul, 156-756, Korea)
  • Published : 1996.12.01


Some rank tests for comparing r treatments against ordered alternatives are proposed when some of data are randomly cemsored, which are the weighted logrank tests based on pairwise-ranking scheme. The covariances of the proposed test statistics are explicitly obtained from the results of the counting process theory and the test procedures are illustrated by a numerical example. Simulation studies are also performed for comparing with the other well-known tests.



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