internal function for sandwich estimator
updateSandW.Rdinternal function for sandwich estimator
Arguments
- y
response value for GEE model
- x
model matrix for the GEE model
- vfun
variance function for the GLM
- mu
mu vector for the GLM
- w
weight matrix
- D
derivation of the inverse link function
- Ralpha
correlation matrix
- beta
vector of beta value for GEE model
- hessmat
hessian matrix
- blockdiag
vector containing the dim of block matrix for block diagonal matrix