Internal functions for the MESS package
scorefct(o, beta = NULL, testidx = NULL, sas = FALSE)
input geepack object from a geeglm fit.
The estimated parameters. If set to NULL
then the parameter estimates are extracted from the model fit object o.
Indices of the beta parameters that should be tested equal to zero
Logical. Should the SAS version of the score test be computed. Defaults to FALSE
.