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Writing Per-Variable Counts with Data.tables in R: Efficient CSV File Output Using l_ply Function

Using Functions in Server.R with Shiny for Reusable Code and Improved Performance

Creating Subset of Data Table in R Based on Another Column Condition Using dplyr Library

Using the `ddply` Function in R: A Comprehensive Guide to Date Manipulation and Aggregation

The Great R Package Confusion: Why summarize Doesn't Work with Group By in dplyr

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

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