asympVar_LinReg         Asymptotic variance-covariance matrix for
                        gamma_Int and gamma_CML for linear regression
                        (continuous outcome Y)
asympVar_LogReg         Asymptotic variance-covariance matrix for
                        gamma_Int and gamma_CML for logistic regression
                        (binary outcome Y)
expit                   Expit
fxnCC_LinReg            Constraint maximum likelihood (CML) method for
                        linear regression (continuous outcome Y)
fxnCC_LogReg            Constraint maximum likelihood (CML) method for
                        logistic regression (binary outcome Y)
get_OCW                 Obtain the proposed Optimal Covariate-Weighted
                        (OCW) estimates
get_SCLearner           Obtain the proposed Selective
                        Coefficient-Learner (SC-Learner) estimates
get_gamma_EB            Calculate the empirical Bayes (EB) estimates
get_var_EB              Using simulation to obtain the asymptotic
                        variance-covariance matrix of gamma_EB, package
                        corpcor and MASS are required
