How to Replace Missing Values with Means in R: A Comparative Analysis of plyr, data.table, and dplyr Approaches

Mastering Subsetting in R: Techniques and Error Prevention Strategies

Understanding Factor Levels in R: How to Eliminate Unused Levels with droplevels()

Subsetting the First Row of Each Element in a Variable Using Dplyr

Selecting and Filtering on the Same Variables in dplyr

Removing Group IDs Based on Condition in At Least One Group Using R Programming Language.

Creating a Custom ftable Function in R: A Step-by-Step Guide