Creating a Counter Variable in R Grouped by ID that Conditionally Resets

Creating a New Column in R Data Frame: Shared Variables and Individual Participants

Understanding rmarkdown::render() in a Loop and Memory Allocation Issues

Merging Two Datasets without a Common Variable in R: A Comprehensive Guide to Non-Equi Joins

How to Recode Variables in a Loop in R: A Step-by-Step Guide for Data Analysis and Preprocessing

How to Perform Monte Carlo Simulations in R: A Practical Guide to Statistical Analysis

Customizing Clustered Data Plots with ggplot2: A Step-by-Step Guide

How to Properly Apply Power Transformation in R: A Step-by-Step Guide for Normalizing Data

Understanding Tidy-Select and Creating a Summary Variable with `mutate` in R for Flexible Data Manipulation

Fixed Effect Poisson Regression with pglm in R: A Deep Dive into Model Specification, Interpretation, and Overcoming Package Limitations