GEE.var.fg              A Modified GEE Variance Estimator Proposed by
                        Fay and Graubard (2001)
GEE.var.gst             A modified GEE Variance Estimator Proposed by
                        Gosho et al.(2014)
GEE.var.kc              A Modified GEE Variance Estimator Proposed by
                        Kauermann and Carroll (2001).
GEE.var.lz              GEE Sandwich Variance Estimator Proposed by
                        Liang and Zeger (1986).
GEE.var.mbn             A modified GEE Variance Estimator Proposed by
                        Morel, Bokossa and Neerchal (2003).
GEE.var.md              A Modified GEE Variance Estimator Proposed by
                        Mancl and DeRouen (2001).
GEE.var.mk              A Modified GEE Variance Estimator Proposed by
                        Mackinnon (1985).
GEE.var.pan             A Modified GEE Variance Estimator Proposed by
                        Pan (2001).
GEE.var.wl              A Modified GEE Variance Estimator Proposed by
                        Wang and Long (2011).
cluster.size            Get Summary Information of The Data.
cormax.ar1              Calculate variance estimator
cormax.exch             Calculate variance estimator
cormax.ind              Calculate variance estimator
dental                  A Data Set of Orthodontic Measurements on
                        Children
geesmv-package          Modified Variance Estimators for Generalized
                        Estimating Equations
mat.prod                Calculate variance estimator
mat.sqrt                Calculate variance estimator
mat.sqrt.inv            Calculate variance estimator
seizure                 Epiliptic seizure counts from the Randomized
                        Progabide Trial
toenail                 Toenail infection data from a multicenter study
