Cox Regression with Firth's Penalized Likelihood
Augment a coxphf object
Cox Regression with Firth's Penalized Likelihood
Cox Regression with Firth's Penalized Likelihood
Plot the Penalized Profile Likelhood Function
Penalized Likelihood Ratio Test in Cox Regression
Glance at a coxphf object
Objects exported from other packages
Tidy a coxphf object
Implements Firth's penalized maximum likelihood bias reduction method for Cox regression which has been shown to provide a solution in case of monotone likelihood (nonconvergence of likelihood function), see Heinze and Schemper (2001) and Heinze and Dunkler (2008). The program fits profile penalized likelihood confidence intervals which were proved to outperform Wald confidence intervals.
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