Greetings -
Does anybody know if there is an R implementation of the Wei-Lachin
tests for incomplete multivariate observations (JASA 79: 653-661)?
The authors' example of data where this test can be applied is in a
study comparing treatment to placebo where the outcome is a series of
time-to-event observations - i.e., time to development of a nonfatal
symptom in each of several major body systems (dermal, musculoskeletal,
neurologic, etc.). The null hypothesis here is that the joint
distributions for each of the treatment and control groups is equal.
Regards,
Jarrod Dalton
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