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. If needed, the bias reduction can be turned off such that ordinary maximum likelihood logistic regression is obtained.

Author | Georg Heinze [aut, cre], Meinhard Ploner [aut], Daniela Dunkler [ctb], Harry Southworth [ctb] |

Date of publication | 2016-12-19 17:15:26 |

Maintainer | Georg Heinze <georg.heinze@meduniwien.ac.at> |

License | GPL |

Version | 1.22 |

http://cemsiis.meduniwien.ac.at/en/kb/science-research/software/statistical-software/fllogistf/ |

**add1.logistf:** Add or Drop All Possible Single Terms to/from a 'logistf'...

**anova.logistf:** Analysis of Penalized Deviance for 'logistf' Models

**backward:** Backward Elimination of Model Terms in 'logistf' Models

**CLIP.confint:** Confidence Intervals after Multiple Imputation: Combination...

**CLIP.profile:** Combine Profile Likelihoods from Imputed-Data Model Fits

**is.logistf:** Check 'logistf' Objects

**logistf:** Firth's Bias-Reduced Logistic Regression

**logistf.control:** Control Parameters for 'logistf'

**logistf-package:** Firth's Bias-Reduced Logistic Regression

**logistftest:** Penalized Likelihood Ratio Test

**plot.logistf.profile:** 'plot' Method for 'logistf' Likelihood Profiles

**print.logistf:** 'print' Method for 'logistf' Objects

**print.logistftest:** 'print' method for 'logistftest' objects

**profile.logistf:** Compute Profile Penalized Likelihood

**PVR.confint:** Pseudo-Variance Modification of Rubin's Rules

**sex2:** Urinary Tract Infection in American College Students

**summary.logistf:** 'summary' Method for 'logistf' Objects

**vcov.logistf:** 'vcov' Method for 'logistf' Objects

logistf

logistf/src

logistf/src/logistf.c

logistf/src/veclib.h

logistf/NAMESPACE

logistf/data

logistf/data/sexagg.txt.gz

logistf/data/sex2.txt.gz

logistf/R

logistf/R/logistf.fit.old.R
logistf/R/anova.logistf.r

logistf/R/summary.logistf.R
logistf/R/cholLinpack.R
logistf/R/extractAIC.logistf.r

logistf/R/logistpl.old.R
logistf/R/inverseLinpack.R
logistf/R/logistf.fit.R
logistf/R/logistpl.control.r

logistf/R/logistf.control.R
logistf/R/logistftest.R
logistf/R/CLIP.profile.r

logistf/R/print.logistf.R
logistf/R/logistpl.R
logistf/R/logistf.R
logistf/R/CLIP.confint.r

logistf/R/PVR.confint.r

logistf/R/pool.RR.r

logistf/R/print.logistftest.R
logistf/R/profile.logistf.r

logistf/R/plot.logistf.profile.r

logistf/R/logistf.pdf.R
logistf/MD5

logistf/DESCRIPTION

logistf/man

logistf/man/anova.logistf.Rd
logistf/man/add1.logistf.Rd
logistf/man/profile.logistf.Rd
logistf/man/backward.Rd
logistf/man/CLIP.profile.Rd
logistf/man/logistftest.Rd
logistf/man/logistf.control.Rd
logistf/man/vcov.logistf.Rd
logistf/man/sex2.Rd
logistf/man/logistpl.control.rd

logistf/man/print.logistf.Rd
logistf/man/print.logistftest.Rd
logistf/man/CLIP.confint.Rd
logistf/man/plot.logistf.profile.Rd
logistf/man/PVR.confint.Rd
logistf/man/is.logistf.Rd
logistf/man/logistf.Rd
logistf/man/summary.logistf.Rd
logistf/man/pool.RR.rd

logistf/man/logistf-package.Rd
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