Related Experiment Video
Updated: Apr 23, 2026

An R-Based Landscape Validation of a Competing Risk Model
Published on: September 16, 2022
Exact and Asymptotic Weighted Logrank Tests for Interval Censored Data: The interval R package
Michael P Fay1, Pamela A Shaw1
1National Institute of Allergy and Infectious Diseases.
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. The interval package depends on the perm package, also presented here, which performs exact and asymptotic linear permutation tests. The perm package performs many of the tests included in the already available coin package, and provides an independent validation of coin. We review analysis methods for interval-censored data, and we describe and show how to use the interval and perm packages.
Related Concept Videos
The Mantel-Cox Log-Rank Test
Wilcoxon Rank-Sum Test
Wilcoxon Signed-Ranks Test for Matched Pairs
Comparing the Survival Analysis of Two or More Groups
Censoring Survival Data
Wilcoxon Signed-Ranks Test for Median of Single Population

