R Observatory: Metrics for pch version 2.2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

pch

2.2

Piecewise Constant Hazard Models for Censored and Truncated Data

4packages depend

4.8Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Paolo FrumentoFirst published 2015-11-278 releasesCRAN page ↗

Piecewise constant hazard models for survival data. The package allows for right-censored, left-truncated, and interval-censored data.

Install

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

install.packages("pch", 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-pch

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

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-pch

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-pch

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 2.6 min · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

3

Dependencies · direct

Check history

OK2026-08-05
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSYes · 33% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 25%

Downloads

4.8K

CRAN downloads in the past year

Rank #9,219 · ~13/day · ~397/mo

Releases R versions

Daily download trend is not available in this view yet.

28230 days

1K90 days

4.8K1 year

Compare downloads with other packages →

Also on131 r2u27 autocran68 c2d4u

Dependencies

Declared dependencies

1 external dependency (excludes base and recommended)

Depends (2)

survivalHmisc

Imports (1)

stats

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

4direct

2indirect

Mqrcm Qest ctqr qrcm

Code & Tests

People & History

People (1)

Maintainer (1)

Paolo Frumento

Author, Maintainer

Authors (1)

Paolo Frumento

Author, Maintainer

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
2.2Latest
2025-07-23 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
2.1
2024-02-09 · diff ↗
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
2.0
2021-02-01 · diff ↗
R
R 4.0.0 released · 2020-04-24
1.4
2020-02-27 · diff ↗
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
1.3
2016-11-06 · diff ↗
1.2
2016-08-20 · diff ↗

Show 4 earlier events

R
R 3.3.0 released · 2016-05-03
1.1
2016-02-18 · diff ↗
1.0
2015-11-27
R
R 3.2.0 released · 2015-04-16

Package metadata

First published: 2015-11-27
Total releases: 8 / 11 yrs
License: GPL-2 OSI
Download size: 17 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Survival Analysis

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("pch")

Format

Frumento, P. (2025). pch: Piecewise Constant Hazard Models for Censored and Truncated Data (Version 2.2) [Computer software]. https://doi.org/10.32614/CRAN.package.pch

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

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 pch version 2.2 [Data set]. HJJB, LLC. Data release v2026-08-23. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-23, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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