Assigning Regression Coefficients of a Factor Variable to a New Variable According to Factor Levels in R

Counting Rows Where Both Column Values Are True Using Logical Operations in R

How to Draw Province Boundaries in R Using rgeos and maptools Packages for Creating Beautiful Choropleth Maps

Mastering Cross-Validation and Grouping in R: Practical Solutions for Machine Learning

Using RollApply to Add a Vector to a Data Frame in R

How to Use the Grid Package in R for Customizing Plots and Layouts

Does R Naturally Preserve the Order of Rows During Data Manipulation?

Substring Extraction and Vector Manipulation in R: A Comprehensive Guide

Working with Java ArrayLists in R: A Comprehensive Guide to Interaction and Data Access

Spread Function with Duplicate Identifiers: A Solution Using dcast()