SimTOST is an R package designed to facilitate the sample size estimation for bioequivalence studies using a simulation-based approach.

rpact: Confirmatory Adaptive Clinical Trial Design and Analysis

Precision Based Sample Size Calculation

Sample Size for Medical Research with R: A Quick Guide Cookbook

This python project is a helper package that uses power analysis to calculate required sample size for any experiment

Collection of scripts and modules for biostatistics and data science simple automation for research process.

Web application to run meta-analyses

📈 Sample size estimation for the {pregnancy} project

Free WordPress Plugin: This sample size calculator enables you to calculate the minimum sample size and the margin of error. Learn about sample size, the margin of error, & confidence interval. www.calculator.io/sample-size-calculator/

Sample size calculation to exponentially decaying IGRA+ proportion

Sample-Size Calculations for A/B Testing using Delta method

Design of single- and multi-stage multi-arm clinical trials

Clinical Trial related calculation: descriptive statistics, power and sample size calculation, randomization.

`powerly` is an R package for conducting sample size analysis for network models and more.

R Shinyapp to calculate sample size for a given power

AB test sample size calculator run through Streamlit

Joint power analysis for non-symmetric two-stage case-control designs

Sample size estimation for single cell studies

Supplemental material for Redfors, Björn, et al. "The win ratio approach for composite endpoints: practical guidance based on previous experience." European Heart Journal (2020). This repo contains R functions that approximate the sample size for a two-arm clinical trial based on a composite endpoint analyzed using the Win Ratio.

Minimal A/B Testing Library in PHP