Nothing
Fits penalized models for both timeindependent and timedependent survival data. It fully implements elastic net and uses proximal gradient descent to solve the optimization problem. The package is an implementation of Steve Cygu and Benjamin M. Bolker. (2021) <arXiv:2102.02297>.
Package details 


Author  Bicko Cygu [aut, cre] (<https://orcid.org/0000000292848863>), Ben Bolker [aut] (<https://orcid.org/0000000221270443>), Trevor Hastie [cph] (getmin function implementation copied from package glmnet) 
Maintainer  Bicko Cygu <cygubicko@gmail.com> 
License  GPL (>= 2) 
Version  1.0.4 
URL  https://github.com/CYGUBICKO/pcoxtimepkg 
Package repository  View on CRAN 
Installation 
Install the latest version of this package by entering the following in R:

Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.