Mutating Variables in a data.table by Condition Using Two Variables in Long Format Data

Aggregating Data Programmatically in data.table: A Comprehensive Guide to Sum, Mean, Max, and Min Operations

Data Manipulation in R Using Data.table Package: A Comprehensive Guide

Optimizing align.time() Functionality in xts Package for Enhanced Performance and Efficiency

Using Melt to Loop Over a Vector in Data.table: Filtering and Summarizing with by

Data Table Comparison: Excluding Overlapping Rows with R's data.table Package

Renaming Multiple Aggregated Columns Using Data.table in R: A Flexible Solution

A Comprehensive Comparison of dplyr and data.table: Performance, Usage, and Applications in R

Using R's Data Table Package to Dynamically Add Columns

Applying Functions to Specific Columns in a data.table: A Powerful Approach to Data Manipulation