ISV.NIS: Test for Non-Inferiority/Superiority of Intra-Subject...

In TrialSize: R Functions for Chapter 3,4,6,7,9,10,11,12,14,15 of Sample Size Calculation in Clinical Research

Test for Non-Inferiority/Superiority of Intra-Subject Variabilities

Description

the ratio = within-subject variance of treatment T / within-subject variance of treatment R

H0: the ratio \ge \delta

Ha: the ratio < \delta

if \delta < 1, the rejection of Null Hypothesis indicates the superiority of the test drug over the reference for the intra-subject variability;

if \delta > 1, the rejection of the null hypothesis implies the non-inferiority of the test drug against the reference for the intra-subject variability; .

Usage

ISV.NIS(alpha, beta, sigma1, sigma2, m, margin)

Arguments

alpha	significance level
beta	power = 1-beta
sigma1	within-subject variance of treatment 1
sigma2	within-subject variance of treatment 2
m	for each subject, there are m replicates.
margin	margin=delta, the true ratio of sigma1/sigma2

References

Chow SC, Shao J, Wang H. Sample Size Calculation in Clinical Research. New York: Marcel Dekker, 2003

Examples

Example.9.1.1<-ISV.NIS(0.05,0.2,0.3^2,0.45^2,3,1.1)
Example.9.1.1

TrialSize documentation built on April 12, 2025, 2:01 a.m.