Maximum Likelihood Estimation of the Survival Functions of Stochastically Ordered Random Variables
研究了在随机排序约束下，如何用最大似然法估计生存函数，包括一个函数固定和两个函数同时估计的情况，并处理了删失数据。
Abstract Many times, aspects of populations exist that must satisfy a stochastic ordering requirement. Nevertheless, estimates may not bear out this stochastic ordering because of the inherent variability of the observations. This article will consider the problem of finding maximum likelihood estimates of stochastically ordered survival functions for the cases (a) one survival function being fixed in advance and (b) estimating two survival functions when the data include censored observations. A numerical example is discussed in detail to illustrate the solution to this problem.