Creating Function to Make Groups in Data.table Based on Predicted Outcome and Compute Mean Difference Confidence Intervals

Using group_modify to Apply Function to Grouped Dataframe: The Power of the Dot (`...`) Syntax

Calculating Multiple Lists' Means Using mapply: Solutions and Workarounds

Error Handling with read_excel: Understanding and Fixing the "std::bad_alloc" Error

Using regex to Group Similar Expressions in a Dataset Without Prior Knowledge of Those Groups Using R's stringr and qdap Packages

Understanding Vector Strings in R: Adding Multiple Suffixes to Character Values

How to Run Friedman’s Test in R: A Step-by-Step Guide

Re-Weighting with WeightIt: A Comprehensive Guide for Balancing Instrumental Variable Two-Stage Least Squares Estimation of Treatment Effects

Understanding the Learning Curve Dat Function in R with Error: $ Operator Not Defined for This S4 Class

Updating a Table in PostgreSQL Database Using R and Data Frame