YPmodelPhreg

1.0.0

The Short-Term and Long-Term Hazard Ratio Model with Proportional Adjustment

0packages depend

1.7Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Daewoo PakFirst published 2023-07-051 releasesCRAN page ↗

Provides covariate-adjusted comparison of two groups of right censored data, where the binary group variable has separate short-term and long-term effects on the hazard function, while effects of covariates such as age, blood pressure, etc. are proportional on the hazard. The model was studied in Yang and Prentice (2015) <doi:10.1002/sim.6453> and it extends the two sample version of the short-term and long-term hazard ratio model proposed in Yang and Prentice (2005) <doi:10.1093/biomet/92.1.1>. The model extends the usual Cox proportional hazards model to allow more flexible hazard ratio patterns, such as gradual onset of effect, diminishing effect, and crossing hazard or survival functions. This package provides the following: 1) point estimates and confidence intervals for model parameters; 2) point estimate and confidence interval of the average hazard ratio; and 3) plots of estimated hazard ratio function with point-wise and simultaneous confidence bands.

Install

R (CRAN)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("YPmodelPhreg")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

Release

# one-time r2u setup for Ubuntu (noble)

curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash

# then install

sudo apt install r-cran-ypmodelphreg

Fast Ubuntu binaries via r2u (no compilation). Run the setup once per machine.

bspm (used by r2u) also needs make: sudo apt install make

sudo dnf copr enable iucar/cran

sudo dnf install R-CRAN-YPmodelPhreg

RPMs from the iucar/cran COPR, rebuilt from CRAN.

sudo zypper install R-YPmodelPhreg

RPMs auto-built from CRAN on openSUSE OBS.

Health

CRAN checks

13OK

Code health

None

Tests · ratio 0.00

not tracked

Coverage

None

Vignettes

Yes

README

Dependencies · direct

Check history

OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Downloads

1.7K

CRAN downloads in the past year

Rank #22,996 · ~5/day · ~144/mo

Releases R versions

Daily download trend is not available in this view yet.

20530 days

50190 days

1.7K1 year

Also on94 r2u8 autocran

Source & community

Repository stars, issues, and contributor activity are not tracked yet.

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (1)

survival base

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Reverse dependencies

0direct

–indirect (not tracked)

Nothing depends on this yet.

Code

1,175Lines of code

13Exported functions

Code & tests

Open call graph →

Line coverage

–

Expression

–

Tests / Examples

–

Functions

13 0 exported

Complexity

5.8 avg / 19 max

Call network

13 nodes / 12 edges

Test coverage has not been measured for this package yet; nodes fall back to a neutral fill.

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Lowest coverage

Per-function coverage is not measured for this package yet.

People & History

People (2)

Maintainer (1)

Daewoo Pak

Author, Maintainer

Authors (1)

Song Yang

Author

Release timeline

1 releases. Pick two to compare their code metrics; R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
1.0.0Latest
2026-03-10 · current release

Package metadata

First published: 2023-07-05
Total releases: 1 / 3 yrs
License: GPL (>= 2) OSI
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet