calculates the cumulative excess hazard from an exponentiated Weibull distribution
cumLexc_alphaeweibull(
z_ucured = z_ucured,
z_pcured = z_pcured,
x = x,
theta = theta,
sign_delta = 1
)An object of class curesurv.
This object is a vector containing:
values of the cumulative excess hazard at the time points considered for the calculations
covariates matrix acting on survival function of uncured
covariates matrix acting on cure proportion.
the time arguments at which to calculate the cumulative excess hazard
the parameters of the cumulative excess hazard from an exponentiated Weibull distribution
only used for mixture cure rate models to specify if the effects or minus the effects of covariates acting on uncured survival to be considered. Default will be sign_delta = "1". The alternative is sign_delta = "-1".
@keywords cumLexc_alphaeweibull
Mudholkar, G.S. and Srivastava, D.K. (1993). Exponentiated Weibull family for analyzing bathtub failure-rate data, IEEE Transactions on Reliability, 42, 299-302.
Mudholkar, G.S., Srivastava, D.K., and Freimer, M. (1995). The exponentiated Weibull family: a reanalysis of the bus-motor-failure data, Technometrics, 37, 436-445.doi:10.2307/1269735 (jstor)