| m1 |
The median survival time of the control group. |
| m2 |
The median survival time of the treatment group. |
| t |
The maximum observed time of the trial. |
| dtr0 |
The survival distribution employed for sample size estimation. The options include ‘exp’ for exponential distribution and ‘weibull’ for Weibull distribution. |
| look |
The number of stages in the trial. |
| info |
The time points and their corresponding stopping boundaries for efficacy of the interim analysis. |
| min |
The starting number of sample size searching of the control group. |
| max |
The ending number of sample size searching of the control group. |
| len |
The length of increment of sample size searching. |
| r |
The sample size ratio of treatment and control groups. |
| drop |
The drop-out rate of the trial. |
| power |
The target overall power of the trial. |
| seed |
The number used to generate a stream of reproducible random numbers. |
| sim |
The number of simulated trials N. |
| path |
The path and name to save the result text file. |
