accrual                 Number of enrolled subjects
caltime                 Calendar times for target number of events
exitprob                Stagewise exit probabilities
lrpower                 Log-rank test power
lrsamplesize            Log-rank test sample size
lrsim                   Log-rank test simulation
lrstat                  Number of subjects having an event and log-rank
                        statistics
lrstat-package          Power and Sample Size Calculation for
                        Non-Proportional Hazards
