| plac-package | A Package for Computating the Pairwise Likelihood Augmented Cox Estimator for Left-Truncated Data. | 
| cum.haz | Calulate the Values of the cumulative Hazard at Fixed Times | 
| PLAC | Calculate the PLAC estimator when a time-dependent indicator presents | 
| PLAC_TD | C++ Function for Solving the PLAC Estimator. (with time-dependent convariates independent of A^*) | 
| PLAC_TDR | C++ Function for Solving the PLAC Estimator. (with time-dependent convariates depending on A^*) | 
| PLAC_TI | C++ Function for Solving the PLAC Estimator. (with time-invariant convariates only) | 
| plr | Perform the paired log-rank test. | 
| PwInd | Generate truncation-pair indicators | 
| SgInd | Generate risk-set indicators | 
| sim.ltrc | Generate left-truncated (and right-cencored) data from the Cox model. | 
| TvInd | Generate time-depependent covariate indicators | 
| TvInd2 | Generate time-depependent covariate indicators |