RelativeRiskCrossOver.Equivalence {TrialSize} | R Documentation |
Ho: |log(OR)| \ge margin
Ha: |log(OR)| < margin
RelativeRiskCrossOver.Equivalence(alpha, beta, sigma, or, margin)
alpha |
significance level |
beta |
power = 1-beta |
sigma |
standard deviation in crossover design |
or |
or=pt(1-pc)/pc(1-pt) |
margin |
the superiority or non-inferiority margin |
Chow SC, Shao J, Wang H. Sample Size Calculation in Clinical Research. New York: Marcel Dekker, 2003