the three-element vector of \((\alpha, \beta, \gamma)\)
interimData
The interim data
Value
the survival log-likelihood
Details
Computes the survival log-likelihood
References
Lai, Tze Leung and Lavori, Philip W. and Shih, Mei-Chiung. Sequential
Design of Phase II-III Cancer Trials, Statistics in Medicine, Volume 31, issue 18, p.1944-1960, 2012.