R Observatory: Metrics for nph version 2.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

nph

2.1Package record

Planning and Analysing Survival Studies under Non-Proportional Hazards

3packages dependsuggested by 1

6.2Kdownloads / year

–test coverage

11/13flavors OK

Overview

About

Maintained by Robin RistlCRAN page ↗

Piecewise constant hazard functions are used to flexibly model survival distributions with non-proportional hazards and to simulate data from the specified distributions. A function to calculate weighted log-rank tests for the comparison of two hazard functions is included. Also, a function to calculate a test using the maximum of a set of test statistics from weighted log-rank tests (MaxCombo test) is provided. This test utilizes the asymptotic multivariate normal joint distribution of the separate test statistics. The correlation is estimated from the data. These methods are described in Ristl et al. (2021) doi:10.1002/pst.2062. Finally, a function is provided for the estimation and inferential statistics of various parameters that quantify the difference between two survival curves. Eligible parameters are differences in survival probabilities, log survival probabilities, complementary log log (cloglog) transformed survival probabilities, quantiles of the survival functions, log transformed quantiles, restricted mean survival times, as well as an average hazard ratio, the Cox model score statistic (logrank statistic), and the Cox-model hazard ratio. Adjustments for multiple testing and simultaneous confidence intervals are calculated using a multivariate normal approximation to the set of selected parameters.

Install

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

install.packages("nph", repos = "https://cloud.r-project.org/")

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

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-nph

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

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

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-nph

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

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-nph

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

2NOTE11OK

Check messages

NOTECRAN incoming feasibilityr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc

Maintainer: ‘Robin Ristl <robin.ristl@meduniwien.ac.at>’

Package CITATION file contains call(s) to old-style personList() or
as.personList().  Please use c() on person objects instead.
Package CITATION file contains call(s) to old-style citEntry().  Please
use bibentry() instead.

CRAN check page ↗

Slowest check: 5.3 min · r-oldrel-windows-x86_64

Status changes

NOTE11 OK, 2 NOTE2026-06-09
ERROR11 OK, 1 NOTE, 1 ERROR2026-06-08
NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 2.1

READMENoVignettesYes · 2 · dynamicNEWSNoCitation fileYes · cites a publicationWebsitenot declared in DESCRIPTION

Help pages: 19
Examples that run: 100%15 run in a plain check
Exported functions with examples: 73%
Documented parameters: 94%
Return-value docs: 67%
Help pages citing references: 63%

Vignettes (2)

How these are measured

Downloads

6.2K

CRAN downloads in the past year

Rank #5,332 · ~17/day · ~519/mo

Releases R versions

Daily download trend is not available in this view yet.

57830 days

1.5K90 days

6.2K1 year

Compare downloads with other packages →

Also on78 r2u9 autocran

How downloads are counted

Dependencies

Declared dependencies

10 external dependencies (excludes base and recommended)

Installing nph adds 23 packages (10 with compiled code, 26 MB of source tarballs). Heaviest: TH.data 8.2 MB, ggplot2 6.0 MB, isoband 1.5 MB.

Depends (1)

R >= 3.5.0

Imports (7)

statsgraphicsmvtnorm ggplot2 muhazsurvivalmultcomp

LinkingTo (0)

none

Suggests (6)

knitr shiny shinycssloaders formatR styler rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

3direct

0indirect

Depends 1 · Imports 2

Suggested by 1

Depends, Imports or LinkingTo, most downloaded first

DTEAssurance SimNPH PHInfiniteEstimates

Suggests, most downloaded first

FastSurvival

How these are counted

Code & Tests

Datasets

People & History

People (2)

Robin Ristl

Author, Maintainer since 1.9 (2019)

Nicolas Ballarini

Contributor

Releases (3)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
2.1Latest
record
2022-05-17 · current release · diff ↗ ·
added 1 export
nphparams
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
2.0
record
2020-01-10 · diff ↗
1.9
record
2019-08-23
R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2019-08-23
Total releases: 3 / 7 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.5.0
Bundled data: 3.1 KB / 1 file
Download size: 1.8 MB

Cite

Cite this package

Run in R for the authors' entry:

citation("nph")

The package provides a citation file, so citation() returns the authors' own entry.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for nph version 2.1 [Data set]. HJJB, LLC. Data release v2026-10-20. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-20, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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