FLAG                    FLAG is the main function to fulfill the whole
                        process.
FlagOneEdge             Use FLAG to infer one edge. Given n*p data
                        matrix, when we only interest in the
                        conditional dependence between i-th and j-th
                        variables.
FlagOnePair             FLAG for one pair of random variables, using
                        random effects model. This is a repeated
                        function for FLAG.
FlagOnePairEta0         FLAG for one pair of random variables fixing
                        eta as zero, using likelihood-ratio test.
GetSeRho                Get the standard error of rho.
InferWald               Infer by the Wald test.
