Authors: Thevaa Chandereng and Richard Chappell
Shiny app for sample size in non-inferiority trial with multiplicative and additive margin. The sample size calculation is available for normal, poisson and binomial distribution. It returns sample size for treatment and control, efficiency compared to 1:1 and randomization ratio. The plot of efficiency helps determine efficiency with different sample size in control.
The app is available at http://www.statlab.wisc.edu/shiny/SSNI/
SSNI-shiny is available under the open source MIT license.