| aft.kmweight | Computing Kaplan-Meier Weights |
| aft.qp | Fiting Regularized Weighted Least Squares Method by Quadratic Programming |
| data | Generating Survival Data from Log-normal AFT Model |
| imputeYn | Imputing the Censored Largest Datum Under Weighted Least Squares Method |
| imputeYn.extra | Imputing the Last Largest tied Observations with a new method |
| lss.mod | Modified Least Squares Pricnciple for Solving the AFT Model |
| print.imputeYn | Printing the Important Components of the Class "imputeYn" |