文章基本信息

标题：Empirical Transition Matrix of Multi-State Models: The etm Package
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作者：Arthur Allignol ; Martin Schumacher ; Jan Beyersmann 等
期刊名称：Journal of Statistical Software
印刷版ISSN：1548-7660
电子版ISSN：1548-7660
出版年度：2011
卷号：38
期号：1
页码：1-15
语种：English
出版社：University of California, Los Angeles
摘要：Multi-State models provide a relevant framework for modelling complex event histories. Quantities of interest are the transition probabilities that can be estimated by the empirical transition matrix, that is also referred to as the Aalen-Johansen estimator. In this paper, we present the R package etm that computes and displays the transition probabilities. etm also features a Greenwood-type estimator of the covariance matrix. The use of the package is illustrated through a prominent example in bone marrow transplant for leukaemia patients.