How to Use Dplyr Package’s Mutate Function with Grouping to Add New Columns to Data Frames

Replacing Multiple Values Using ifelse in R: A Deep Dive into a Simpler Alternative

How to Group Rows by Multiple Columns Using dplyr in R

Mastering Lazy Evaluation with dplyr: A Guide to Efficient Function Writing

Creating Frequency Tables with Dplyr: A Comprehensive Guide to Understanding and Utilizing this Valuable Tool in R

Removing Duplicated Rows with Filtered Countries

Selecting Certain Observations Plus Before and After Dates Using R

How to Check if an Item Exists Within a List in R: Multiple Approaches for Efficient Data Analysis

Handling Mixed Data Types in Column Sorting with R: A Comparative Analysis of gtools and stringr Approaches

Grouping a DataFrame by One Variable and Calculating Row Sums Within Groups Using R's Tidyverse Library