| beta_AD | Caculate the estimators of beta on the A-opt and D-opt |
| beta_cor | Caculate the estimator of beta on the COR |
| cerr | cerr function is used to generate a dataset where the error term follows cosine-based distributions |
| CLIC | CLIC function based on LIC with cosine_random distributed errors |
| LICnew | Calculate the LIC estimator based on A-optimal and D-optimal criterion |