H0 | R Documentation |
Cumulative Hazard Function for Exponential and Weibull Distributions
H0(t, survdist, k, lambda0)
t |
time variable |
survdist |
survival distribution of uncured patients. It can be " |
k |
if |
lambda0 |
the scale parameter of exponential distribution or Weibull distribution for survival times of uncured patients in the control arm. The density function of Weibull distribution with shape parameter f(t)=λ_{0}k(λ_{0}t)^{k-1}\exp(-(λ_{0}t)^k), for t > 0, and the corresponding survival distribution is S(t)=\exp(-(λ_0 t)^k). |
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