logLikelihood.ku {vitality} | R Documentation |
Gives the log likelihood of 4-parameter vitality model.
logLikelihood.ku(par, xx1, xx2, NNi)
par |
vector of parameters (r, s, k, u) |
xx1 |
xx1 vector |
xx2 |
xx2 vector |
NNi |
survival fractions |
For use in vitality.ku
.
log likelihood