TemporalHazard: Temporal Parametric Hazard Modeling

Provides native R implementations of the multiphase parametric hazard model of Blackstone, Naftel, and Turner (1986) <doi:10.1080/01621459.1986.10478314> with a focus on behavioral parity, transparent numerics, and reproducible validation against reference outputs from the original 'C'/'SAS' HAZARD program, originally developed at the University of Alabama at Birmingham (UAB). The 'SAS'/'C' code and this R package are currently developed and maintained at The Cleveland Clinic Foundation, and the R code was wholly developed at The Cleveland Clinic Foundation. The generalized temporal decomposition family extends to longitudinal mixed-effects settings (Rajeswaran et al. 2018 <doi:10.1177/0962280215623583>). The package is intentionally implemented in pure R first; performance-critical paths may later be accelerated with 'Rcpp' without changing the public interface.

Version:	1.0.3
Depends:	R (≥ 4.1.0)
Imports:	survival
Suggests:	covr, ggplot2, knitr, lintr, numDeriv, pkgdown, quarto, roxygen2, rmarkdown, scales, testthat (≥ 3.0.0)
Published:	2026-05-30
DOI:	10.32614/CRAN.package.TemporalHazard
Author:	John Ehrlinger [aut, cre, cph]
Maintainer:	John Ehrlinger <john.ehrlinger at gmail.com>
BugReports:	https://github.com/ehrlinger/temporal_hazard/issues
License:	MIT + file LICENSE
URL:	https://ehrlinger.github.io/temporal_hazard/, https://github.com/ehrlinger/temporal_hazard
NeedsCompilation:	no
Language:	en-US
Citation:	TemporalHazard citation info
Materials:	README, NEWS
CRAN checks:	TemporalHazard results

Documentation:

Reference manual:	TemporalHazard.html , TemporalHazard.pdf
Vignettes:	Package Architecture (source, R code) Complete Clinical Analysis Walkthrough (source, R code) Fitting Hazard Models (source, R code) Getting Started with TemporalHazard (source, R code) Inference & Diagnostics (source, R code) Mathematical Foundations of TemporalHazard (source, R code) Prediction & Visualization (source, R code) Migrating from SAS HAZARD to TemporalHazard (source, R code)

Downloads:

Package source:	TemporalHazard_1.0.3.tar.gz
Windows binaries:	r-devel: TemporalHazard_1.0.3.zip, r-release: not available, r-oldrel: TemporalHazard_1.0.3.zip
macOS binaries:	r-release (arm64): TemporalHazard_1.0.3.tgz, r-oldrel (arm64): TemporalHazard_1.0.3.tgz, r-release (x86_64): TemporalHazard_1.0.3.tgz, r-oldrel (x86_64): TemporalHazard_1.0.3.tgz

Linking:

Please use the canonical form https://CRAN.R-project.org/package=TemporalHazard to link to this page.