ELIC                    A General Length and Information Criterion
                        (LIC) Function
LICnew                  Calculate the LIC estimator based on A-optimal
                        and D-optimal criterion
beta_AD                 Caculate the estimators of beta on the A-opt
                        and D-opt
beta_cor                Caculate the estimator of beta on the COR
eerr                    Generate Data with Elliptically Distributed
                        Covariates
