OneArm.CondPower {ADCT} | R Documentation |
Given the group sequential design information, returns the conditional power.
OneArm.CondPower(mu1, mu2, n1, n2, rho, tau, alpha2, alternative)
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 |
The evaluated power with attributes and computational error.
Yalin Zhu
Chang, M. (2014). Adaptive design theory and implementation using SAS and R. CRC Press.
# 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")