Converting Negative Binomial Regression Model from SAS to R

Understanding Cluster Analysis and Outlier Detection in R: A Comprehensive Guide to Ward Method and Beyond

Here is a rewritten version of the text in a more readable format:

Understanding the Power of 3-Level Logistic Regression: A Comprehensive Guide to Analyzing Nested Data Structures in R

Creating a B-Spline in R on a SAS System: A Comprehensive Guide to Spline Curve Evaluation

Comparing Random Number Generation in R and SAS: A Statistical Analysis Perspective