| get_oc | Generate operating characteristics for Two-Stage Screened Selection Design for Randomized Phase II Trials with Time-to-Event Endpoints |
| get_oc_3arm | Generate operating characteristics for Two-Stage Screened Selection Design for Randomized Phase II Trials with Time-to-Event Endpoints for 3 arms |
| optimal | Find optimal parameters |
| sample_size | Calculate the sample size for each arm |
| sample_size_3arm | Calculate the sample size for each arm |
| sampsize_1stage_2arm | Calculate the sample size for each arm |