Understanding How to Group and Remove Duplicate Values from Sparse DataFrames in R

Efficient Data Analysis: A Function to Summarize Columns After Filtering

Using Dplyr to Summarize Ecological Survival Data: A Practical Guide to Complex Data Analysis in R

Summarizing All Columns Except for Duplicate Strings and NA Values in R Using `summarize_all`

Summary of dplyr: A Comprehensive Guide to Summary Over Combinations of Factors