The main function is icweib, which fits a stratified Weibull proportional hazards model for left censored, right censored, interval censored, and noncensored survival data. We parameterize the Weibull regression model so that it allows a stratumspecific baseline hazard function, but where the effects of other covariates are assumed to be constant across strata.
Package details 


Author  Xiangdong Gu and Raji Balasubramanian 
Maintainer  Xiangdong Gu <[email protected]> 
License  GPL (>= 2) 
Version  1.0 
Package repository  View on GitHub 
Installation 
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