loglik_Chen_weibull {EventPredInCure}

Log-likelihood function for Weibull distribution with cured population

Description

Provide log-likelihood function for Weibull distribution with cured population

Usage

loglik_Chen_weibull(par, df)

Arguments

par

a vector with three elements, where the first element denotes the logistic of the proportion of the cured population, and the second element and the third element denote the log of the shape and log of the scale parameter of the Weibull distribution.

df

The subject-level event data, including time and event.

Value

The negative value of the log-likelihood function given parameter par and the dataset df

References

• Chen, Tai-Tsang. "Predicting analysis times in randomized clinical trials with cancer immunotherapy." BMC medical research methodology 16.1 (2016): 1-10.