Other packages > Find by keyword >

logistf  

Firth's Bias-Reduced Logistic Regression
View on CRAN: Click here


Download and install logistf package within the R console
Install from CRAN:
install.packages("logistf")

Install from Github:
library("remotes")
install_github("cran/logistf")

Install by package version:
library("remotes")
install_version("logistf", "1.26.1")



Attach the package and use:
library("logistf")
Maintained by
Georg Heinze
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2003-10-23
Latest Update: 2025-04-16
Description:
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) . 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) .
How to cite:
Georg Heinze (2003). logistf: Firth's Bias-Reduced Logistic Regression. R package version 1.26.1, https://cran.r-project.org/web/packages/logistf. Accessed 08 Aug. 2026.
Previous versions and publish date:
(2026-07-09 07:53), 1.00 (2003-10-23 09:48), 1.01 (2004-04-22 10:20), 1.03 (2005-04-05 09:38), 1.05 (2005-11-17 11:00), 1.06 (2006-04-20 17:27), 1.10 (2010-04-25 09:26), 1.20 (2013-05-16 10:44), 1.21 (2013-06-26 18:31), 1.22 (2016-12-19 17:15), 1.23.1 (2020-09-04 06:22), 1.23 (2018-07-19 19:40), 1.24.1 (2022-01-18 17:02), 1.24 (2020-09-16 08:40), 1.25.0 (2023-05-03 09:30), 1.26.0 (2023-08-18 11:52)
Other packages that cited logistf R package
View logistf citation profile
Other R packages that logistf depends, imports, suggests or enhances
Complete documentation for logistf
Downloads during the last 30 days

Today's Hot Picks in Authors and Packages

FastGaSP  
Fast and Exact Computation of Gaussian Stochastic Process
Implements fast and exact computation of Gaussian stochastic process with the Matern kernel using fo ...
Download / Learn more Package Citations See dependency  
nextGenShinyApps  
Craft Exceptional 'R Shiny' Applications and Dashboards with Novel Responsive Tools
Nove responsive tools for designing and developing 'Shiny' dashboards and applications. The scripts ...
Download / Learn more Package Citations See dependency  
productplots  
Product Plots for R
Framework for visualising tables of counts, proportions and probabilities. The framework is called ...
Download / Learn more Package Citations See dependency  
box  
Write Reusable, Composable and Modular R Code
A modern module system for R. Organise code into hierarchical, composable, reusable modules, and us ...
Download / Learn more Package Citations See dependency  
Morpho  
Calculations and Visualisations Related to Geometric Morphometrics
A toolset for Geometric Morphometrics and mesh processing. This includes (among other stuff) mesh d ...
Download / Learn more Package Citations See dependency  
skewt  
The Skewed Student-t Distribution
Density, distribution function, quantile function and random generation for the skewed t distributio ...
Download / Learn more Package Citations See dependency  

28,083

R Packages

239,283

Dependencies

74,752

Author Associations

28,084

Publication Badges

© Copyright since 2022. All right reserved, rpkg.net.  Based in Cambridge, Massachusetts, USA