| cal_event | Event Rate Calculation |
| cureHR | Control hazard and hazard ratio generation function |
| evalfup | Visualization of the Relationship between Follow-up and Sample Size |
| gen.wgt | Weight Function Generation |
| lung | Lung cancer data set |
| MaxLRtest | Maximum Weighted Logrank Test |
| n2pwr.NPH | Power Calculation with Combination Test |
| phsize | Sample Size Calculation under Proportional Hazards |
| plot.MaxLR | Graphical Display of Weight Functions |
| plot.NPHpwr | Graphical Display of Design Parameters in Sample Size Calculation |
| plotHazSurv | Graphic Display of Hazard and Survival Function |
| projection.test | Projection test |
| pwr2n.LR | Sample Size Calculation under Proportional Hazards |
| pwr2n.NPH | Sample Size Calculation with Combination Test |
| simu.trial | Simulate Survival Trial Data |
| summary.NPHpwr | Summary of the 'pwr2n.NPH' function |