title: Exact and Asymptotic Weighted Logrank Tests for Interval Censored Data: The interval R package.
abstract: For right-censored data perhaps the most commonly used tests are weighted logrank tests, such as the logrank and Wilcoxon-type tests. In this paper we review several generalizations of those weighted logrank tests to interval-censored data and present an R package,interval, to implement many of them. Theintervalpackage depends on thepermpackage, also presented here, which performs exact and asymptotic linear permutation tests. Thepermpackage performs many of the tests included in the already availablecoinpackage, and provides an independent validation ofcoin. We review analysis methods for interval-censored data, and we describe and show how to use theintervalandpermpackages.
authors.affiliation: National Institute of Allergy and Infectious Diseases.
authors.forename: Michael P
authors.initials: MP
authors.lastname: Fay
authors.affiliation: National Institute of Allergy and Infectious Diseases.
authors.forename: Pamela A
authors.initials: PA
authors.lastname: Shaw
keywords: R; Wilcoxon test; exact tests; logrank test; network algorithm