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A sum-wise formulation is proposed for the Kaplan–Meier product limit estimator of partially right-censored survival data. The population estimator is expressed as a sum over the individual units’ empirical and semi-empirical contributions, for observed and censored failures, respectively. This intuitive decomposition is applied to visualize the different contributions of failed and censored units to the overall population estimator.
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Malte C. Tichy (2026) studied this question.
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