Selecting and Filtering Data in R: A Step-by-Step Guide for Working with Datasets

Summarizing Multiple Columns with dplyr: A Categorical Version

Grouping and Summing Multiple Variables in R: A Comprehensive Guide to Data Analysis

Finding the Last Few Rows of a Large Spark DataFrame: A Comparison of Approaches

Conditional Data Manipulation with R's `data.table` Package

Selecting Columns of a DataFrame in R Based on Character Values

Advanced Data Manipulation in R with dplyr and tidyr: Mastering Logical Columns, Grouping, Summarization, and More

Removing Duplicate Rows in R while Preserving Group Order with dplyr

Reorder Column of a Dataset Based on the Order of Another Dataset in R

Combining Rows and Columns in DataFrames Using R's plyr Package