Calculates nonparametric pointwise confidence intervals for the survival distribution for right censored data, and for medians [Fay and Brittain <DOI:10.1002/sim.6905>]. Has twosample tests for dissimilarity (e.g., difference, ratio or odds ratio) in survival at a fixed time, and differences in medians [Fay, Proschan, and Brittain <DOI:10.1111/biom.12231>]. Basically, the package gives exact inference methods for one and twosample exact inferences for KaplanMeier curves (e.g., generalizing Fisher's exact test to allow for right censoring), which are especially important for latter parts of the survival curve, small sample sizes or heavily censored data. Includes midp options.
Package details 


Author  Michael P. Fay [aut, cre], Allyson Mateja [ctb] 
Maintainer  Michael P. Fay <mfay@niaid.nih.gov> 
License  GPL (>= 2) 
Version  1.4.2 
Package repository  View on CRAN 
Installation 
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