The ICLIFETEST Procedure

uses the efficient EMICM algorithm (Wellner and Zhan, 1997) to estimate survival functions by default

supports Turnbull’s algorithm (Turnbull, 1976) and the iterative convex minorant (ICM) algorithm (Groeneboom and Wellner, 1992)

computes standard errors of the survival estimates by using a multiple imputation method or a bootstrap method

supports several transformation-based confidence intervals

produces survival plots

provides the weighted generalized log-rank test

supports a variety of weight functions for testing early or late differences

supports a stratified test for survival differences within predefined populations

supports a trend test for ordered alternatives

supports multiple-comparison functionalities