EDAR

This script demonstrates how to estimate the required sample size for a logistic regression model where the predictor is an ordinal factor. The steps include: - Step 1. Simulating an ordinal predictor - Step 2. Dummy coding the predictor - Step 3. Estimating adjusted R-squared - Step 4. Defining predictor distribution - Step 5. Calculating sample size

The original tutorial was published on CRAN and can be accessed at: https://cran.rstudio.com/web/packages/pwrss/vignettes/examples.html