Creating Multiple Columns with 0/1 Counts Based on Another Column in R Using Base R, dplyr, and tidyr

Correlation Matrix of Grouped Variables in dplyr Using Multiple Approaches

Using is.na() with dplyr: Handling Column Names as Strings

Counting Occurrences in R: A Step-by-Step Approach to Creating New Columns Based on Conditional Statements

Change Entry Values in Certain Variables to NA while Preserving Rest of Data

Applying Linear Regression in R: Separating Slope and Intercept by Item with dplyr and lm

Passing Variables to Dynamic Column Arrangement with dplyr and Lazy Evaluation in R Programming

How to Duplicate Specific Rows with Comma-Separated Values in R Using dplyr

Creating a New Column by Combining Mutually Exclusive Columns in R Using dplyr Package

How to Recode Numeric Columns in R Using Lookup Vectors and String Manipulation Techniques