# Power and Sample Size Calculation for Non-Proportional Hazards

## Documentation for package ‘lrstat’ version 0.1.3

- DESCRIPTION file.
- User guides, package vignettes and other documentation.

## Help Pages

lrstat-package | Power and Sample Size Calculation for Non-Proportional Hazards
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