R Observatory: Metrics for kmc version 0.4-2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

kmc

0.4-2

Kaplan-Meier Estimator with Constraints for Right Censored Data -- a Recursive Computational Algorithm

0packages depend

3.1Kdownloads / year

30.0%test coverage

0/13checks pass

Overview

About

Maintained by Yifan YangFirst published 2013-12-255 releasesCRAN page ↗GitHub ↗

Given constraints for right censored data, we use a recursive computational algorithm to calculate the the "constrained" Kaplan-Meier estimator. The constraint is assumed given in linear estimating equations or mean functions. We also illustrate how this leads to the empirical likelihood ratio test with right censored data and accelerated failure time model with given coefficients. EM algorithm from emplik package is used to get the initial value. The properties and performance of the EM algorithm is discussed in Mai Zhou and Yifan Yang (2015)<doi: 10.1007/s00180-015-0567-9> and Mai Zhou and Yifan Yang (2017) <doi: 10.1002/wics.1400>. More applications could be found in Mai Zhou (2015) <doi: 10.1201/b18598>.

Install

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

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

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

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("yfyang86/kmc")

Development version from yfyang86/kmc. Installs pak first if it is not already available.

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-kmc

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-kmc

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-kmc

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

Health

CRAN checks

13NOTE

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang
NOTE r-devel-linux-x86_64-debian-gcc
NOTE r-devel-linux-x86_64-fedora-clang
NOTE r-devel-linux-x86_64-fedora-gcc
NOTE r-devel-windows-x86_64
NOTE r-oldrel-macos-arm64
NOTE r-oldrel-macos-x86_64
NOTE r-oldrel-windows-x86_64
NOTE r-patched-linux-x86_64
NOTE r-release-linux-x86_64
NOTE r-release-macos-arm64
NOTE r-release-macos-x86_64
NOTE r-release-windows-x86_64

Slowest check: 3.2 min · r-devel-windows-x86_64

Code health

Yes

Tests · ratio 0.05

30.0%

Coverage · measured lines

100%

Documentation · exports

3

Dependencies · direct

Check history

NOTE2026-04-22
0 OK · 14 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
0 OK · 13 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-10
0 OK · 14 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 82%
Return-value docs: 100%
References docs: 80%

Downloads

3.1K

CRAN downloads in the past year

Rank #12,161 · ~9/day · ~261/mo

Releases R versions

Daily download trend is not available in this view yet.

22430 days

81790 days

3.1K1 year

Compare downloads with other packages →

Also on395 r2u77 c2d4u

Repository

GitHub ↗ yfyang86/kmc

2Stars

3Forks

0Open issues

0Open PRs

0Releases

75Commits

7Contributors

75 commits · Last activity 2026-05-27

Repository practices

Upstream repositoryBeta

2 development-tooling and community-health practices detected across 2 families in the upstream repository

Checks run against github.com/yfyang86/kmc on 2026-08-16.

Continuous integration (1)

GitHub Actions

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

6 external dependencies (excludes base and recommended)

Depends (4)

R >= 3.5compilerrootSolve emplik

Imports (0)

none

LinkingTo (1)

Rcpp

Suggests (4)

survivalggplot2 tidyr testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (2)

Maintainer (1)

Yifan Yang

Author, Maintainer, Copyright holder

Authors (2)

Yifan Yang

Author, Maintainer, Copyright holder

Mai Zhou

Author

Copyright holders (1)

Yifan Yang

Author, Maintainer, Copyright holder

Package Timeline

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

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
0.4-2Latest
2022-11-22 · current release · diff ↗
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
0.2-4
2020-03-16 · diff ↗
unarchivedReturned to CRAN
2020-03-16
archivedRemoved from CRAN
2020-03-12
installation errors were not corrected in time On sanitized build with clang 10: misuses 'inline'
R
R 3.6.0 released · 2019-04-26
0.2-3
2019-04-24 · diff ↗
unarchivedReturned to CRAN
2019-04-24
archivedRemoved from CRAN
2018-05-03
check problems were not corrected despite reminders
R
R 3.5.0 released · 2018-04-23

Show 7 earlier events

R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
0.2-2
2015-11-23 · diff ↗
R
R 3.2.0 released · 2015-04-16
R
R 3.1.0 released · 2014-04-10
0.1-2
2013-12-25
R
R 3.0.0 released · 2013-04-03

Package metadata

First published: 2013-12-25
Total releases: 5 / 13 yrs
License: LGPL-3 OSI
Minimum R: ≥ 3.5
Download size: 19 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("kmc")

Format

Yang, Y., & Zhou, M. (2022). kmc: Kaplan-Meier Estimator with Constraints for Right Censored Data -- a Recursive Computational Algorithm (Version 0.4-2) [Computer software]. https://doi.org/10.32614/CRAN.package.kmc

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 kmc version 0.4-2 [Data set]. HJJB, LLC. Data release v2026-08-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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