OneArm.CondPower {ADCT} | R Documentation |

## Conditional power for one-arm, two-stage design with two primary endpoints

### Description

Given the group sequential design information, returns the conditional power.

### Usage

```
OneArm.CondPower(mu1, mu2, n1, n2, rho, tau, alpha2, alternative)
```

### Arguments

`mu1` |
mean value for the first stage (endpoint 1). |

`mu2` |
mean value for the second stage (endpoint 2). |

`n1` |
sample size for the first stage. |

`n2` |
sample size for the second stage. |

`rho` |
correlation coefficient between two coprimary endpoints. |

`tau` |
information time for the interim analysis. |

`alpha2` |
significant level for the second stage. |

`alternative` |
indicates the alternative hypothesis and must be one of |

### Value

The evaluated power with attributes and computational error.

### Author(s)

Yalin Zhu

### References

Chang, M. (2014). Adaptive design theory and implementation using SAS and R.
*CRC Press*.

### Examples

```
# Example in Chang (2014) page 277
OneArm.CondPower(mu1=0.1333, mu2=0.1605, n1=130, n2=130, rho=0.35,
tau=0.5, alpha2=0.024, alternative = "one.sided")
OneArm.CondPower(mu1=0.1333, mu2=0.1605, n1=130, n2=414, rho=0.35,
tau=0.5, alpha2=0.024, alternative = "one.sided")
```

[Package

*ADCT*version 0.1.0 Index]