dpoiss: Diagonal matrix D for the Poisson case in discrete GLM
Description
See Marazzi A. (1993), p.312Usage
dpoiss(y, ci, vtheta, wa, f0, oi = 0, kap = 1e-06)
References
Marazzi A. (1993) Algorithm, Routines, and S functions
for Robust Statistics. Wadsworth & Brooks/cole, Pacific Grove,
California. p.31