Creating a Single DataFrame by Aggregating Multiple DataFrames in R Using Nested sapply Functions

Creating a Function Out of a Dataframe with a Formula for Efficient Linear Regression Coefficients Calculation

Manipulating Data in a DataFrame Without Loops: A Deeper Dive into dplyr

Extracting Variable Names from Modified Columns in R Data Frames with Indexing

Efficiently Merge Data Frames Using R's dplyr Library for Age Group Assignment