R Observatory: Metrics for logistf version 1.26.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

logistf

1.26.1

Firth's Bias-Reduced Logistic Regression

21packages depend

209Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Georg HeinzeFirst published 2003-10-2316 releasesCRAN page ↗GitHub ↗

Fit a logistic regression model using Firth's bias reduction method, equivalent to penalization of the log-likelihood by the Jeffreys prior. Confidence intervals for regression coefficients can be computed by penalized profile likelihood. Firth's method was proposed as ideal solution to the problem of separation in logistic regression, see Heinze and Schemper (2002) doi:10.1002/sim.1047. If needed, the bias reduction can be turned off such that ordinary maximum likelihood logistic regression is obtained. Two new modifications of Firth's method, FLIC and FLAC, lead to unbiased predictions and are now available in the package as well, see Puhr et al (2017) doi:10.1002/sim.7273.

Install

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

install.packages("logistf", 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("georgheinze/logistf")

Development version from georgheinze/logistf. 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-logistf

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-logistf

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-logistf

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

Health

CRAN checks

13OK

Slowest check: 3.6 min · r-devel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

4

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
OK2026-05-02
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Show 2 earlier snapshots

ERROR2026-04-25
11 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 173 wordsVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 55%

Downloads

209K

CRAN downloads in the past year

Rank #947 · ~572/day · ~17.4K/mo

Releases R versions

Daily download trend is not available in this view yet.

15.3K30 days

46.4K90 days

209K1 year

Compare downloads with other packages →

Also on4.7K r2u142 autocran8K conda_forge59 c2d4u

Repository

GitHub ↗ georgheinze/logistf

16Stars

8Forks

17Open issues

3Open PRs

0Releases

258Commits

4Contributors

258 commits · Last activity 2025-04-16 · 0% stars, 30d

Stars over time

2024-09-16 · 112026-07-07 · 16

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/georgheinze/logistf on 2026-08-09.

Continuous integration (1)

GitHub Actions

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.0.0

Imports (4)

micemgcvformula.toolsMatrix

LinkingTo (0)

none

Suggests (2)

emmeans estimability

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

21direct

0indirect

mDAG AUtests BayesianMCPMod BiVariAn Surrogate emcAdr iPRSue multisite.accuracy pogit EHR WeightIt clarify fastglm ggeffects insight jointest marginaleffects metamisc nncc parameters phyr

Code & Tests

Datasets

People & History

People (6)

Maintainer (1)

Georg Heinze

Author, Maintainer

Authors (4)

Georg Heinze

Author, Maintainer

Lena Jiricka

Author · added in 1.24

Meinhard Ploner

Author

Gregor Steiner

Author · added in 1.25.0

Contributors (2)

Daniela Dunkler

Contributor

Harry Southworth

Contributor · added in 1.01

Listed in earlier versions (3)

i Harry Southworth

no longer listed · 1.00

Daniela Dunkler (former versions)

no longer listed · 1.20 to 1.21

Harry Southworth (former versions)

no longer listed · 1.20 to 1.21

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
1.26.1Latest
2025-04-16 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
1.26.0
2023-08-18 · diff ↗
1.25.0
2023-05-03 · diff ↗
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
1.24.1
2022-01-18 · diff ↗
R
R 4.1.0 released · 2021-05-18
1.24
2020-09-16 · diff ↗
unarchivedReturned to CRAN
2020-09-16
1.23.1
2020-09-04 · diff ↗
orphanedOrphaned by its maintainer
2020-09-04
there was no response from the nominal maintainer
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26

Show 34 earlier events

1.23
2018-07-19 · diff ↗
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
1.22
2016-12-19 · diff ↗
R
R 3.3.0 released · 2016-05-03
R
R 3.2.0 released · 2015-04-16
R
R 3.1.0 released · 2014-04-10
1.21
2013-06-26 · diff ↗
1.20
2013-05-16 · diff ↗
R
R 3.0.0 released · 2013-04-03
R
R 2.15.0 released · 2012-03-30
R
R 2.14.0 released · 2011-10-31
R
R 2.13.0 released · 2011-04-13
R
R 2.12.0 released · 2010-10-15
1.10
2010-04-25 · diff ↗
R
R 2.11.0 released · 2010-04-22
R
R 2.10.0 released · 2009-10-26
R
R 2.9.0 released · 2009-04-17
R
R 2.8.0 released · 2008-10-20
R
R 2.7.0 released · 2008-04-22
R
R 2.6.0 released · 2007-10-03
R
R 2.5.0 released · 2007-04-24
R
R 2.4.0 released · 2006-10-03
R
R 2.3.0 released · 2006-04-24
1.06
2006-04-20 · diff ↗
1.05
2005-11-17 · diff ↗
R
R 2.2.0 released · 2005-10-06
R
R 2.1.0 released · 2005-04-18
1.03
2005-04-05 · diff ↗
R
R 2.0.0 released · 2004-10-04
1.01
2004-04-22 · diff ↗
R
R 1.9.0 released · 2004-04-12
1.00
2003-10-23
R
R 1.8.0 released · 2003-10-08

Package metadata

First published: 2003-10-23
Total releases: 16 / 23 yrs
License: GPL
Minimum R: ≥ 3.0.0
Bundled data: 0.8 KB / 2 files
Download size: 74 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Clinical Trial Design, Monitoring, Analysis and Reporting

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("logistf")

Format

Heinze, G., Dunkler, D., Jiricka, L., Ploner, M., Southworth, H., & Steiner, G. (2025). logistf: Firth's Bias-Reduced Logistic Regression (Version 1.26.1) [Computer software]. https://doi.org/10.32614/CRAN.package.logistf

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 logistf version 1.26.1 [Data set]. HJJB, LLC. Data release v2026-08-15. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-15, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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