Score vector and Fisher information matrix of the Poisson log likelihood.
Score vector and Fisher information matrix of the Poisson log likelihood.
This function calculates the score vector and the Fisher information matrix needed for the estimation of multistate models using the Fisher scoring algorithm.
sF(mu, X, event)
Arguments
mu: mu.
X: design matrix.
event: non-censoring event indicator.
Details
This function implements the score vector and Fisher information matrix.