logLikelihood.4p {vitality} | R Documentation |
Gives the log likelihood of 2-process 6 parameter vitality model.
logLikelihood.4p(par, xx1, xx2, NNi)
par |
vector of parameter(r, s, lambda, beta) |
xx1 |
xx1 vector |
xx2 |
xx2 vector |
NNi |
survival fractions |
For use in vitality.4p
.
log likelihood