Get_UV_from_beta        Compute the summary statistics given the
                        genetic effect estimates and their standard
                        errors
Get_UV_from_data        Compute the summary statistics given the
                        individual-level data
Get_UV_from_varU        Compute the summary statistics given the score
                        statistics and their variance.
Get_zeta                Calculate Covariances of Z-scores between
                        Traits from Overlapping Samples
MTAR                    Multiple-Traits Analysis of Rare-Variant
                        Association Test
MTAR.example            PNPLA2 Gene
beta.example            Example3: the genetic effect estimates and
                        their standard errors
rawdata                 Example1: individual-level data
varU.example            Example2: the summary statistics and their
                        variance
zeta.example            Example4: the summary statistics of 737 common
                        and null SNPs
