| alpNeeded | Function to compute alpha needed (fixed sample size) |
| alpNeeded2 | Function to compute alpha needed (fixed sample size) |
| assurance | Assurance (expected power) for LWYY |
| assurance2 | Assurance (expected power) for LWYY |
| btaNeeded | Function to compute log rate ratio needed (fixed sample size) |
| btaNeeded2 | Function to compute log rate ratio needed (fixed sample size) |
| btaNeeded3 | Function to compute log rate ratio needed |
| erNeeded | Baseline event rate needed (fixed sample size) |
| eventsNeeded | Number of events needed |
| eventsNeeded2 | Number events needed (fixed sample size) |
| nNeeded | Function to compute sample size needed to achieve target power |
| nNeeded2 | Function to compute sample size needed to achieve target power |
| pow | Power for LWYY (fixed sample size) |
| pow2 | Power for LWYY (fixed sample size) |
| power.lwyy.test | Power calculations for one-sided two-sample test of LWYY model parameter. |
| thtap2thta | Obtain theta from pooled theta (model without treatment). |