A copula‐graphic estimator for the conditional survival function under dependent censoring |
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Authors: | Roel Braekers,Noë l Veraverbeke |
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Abstract: | Rivest Wells (2001) showed that in situations where the dependence between a lifetime and a censoring variable can be modeled by a given Archimedean copula, the copula‐graphic estimator of Zheng Klein (1995) has an explicit form. The authors extend this work to the fixed design regression case. They show that the copula‐graphic estimator then has an asymptotic representation and a Gaussian limit. They also assess the influence of a misspecified copula function on the performance of the estimator. Their developments are illustrated with data on the survival of the Atlantic halibut. |
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Keywords: | Archimedean copula asymptotic representation copula‐graphic estimator dependent censoring fixed design regression sensitivity analysis weak convergence |
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