an integer or a character string to specify one of three GEE algorithms:
"GEE2"
Use the paired estimating equations for regression and
correlation parameters.
Enter 2 for this option.
"GEE1"
Use an estimating equation for regression parameters
and moment methods for covariance parameters.
Enter 1 for this option.
"GEE0"
Fix the covariance parameters at their initial estimates during iterations,
then use moment methods to estimate the final correlation and scale parameters
after convergence of the regression parameters.
The number 0 can also be entered for this option.
The default is 2 for
"GEE2".
reg.tol
threshold for the relative convergence of regression parameters.
cor.tol
threshold for the relative convergence of correlation parameters.
maxit
maximum number of iterations. The default is 30.
trace
a logical value indicating whether or not iteration details should be printed.
The default is not to print tracing information.
sorted
a logical value indicating whether or not the data has been
sorted according to the cluster id and and record id as
specified in
cluster
argument in the call to
gee/geeDesign.
The data will be sorted accordingly
if
sorted=F, which is the default.
VALUE:
a list of control arguments to be used in a call to
gee
or
geeDesign.
A call to
geeControl can be used directly
in the
control argument of a call to
gee/geeDesign
.