Replacing NAs with the Latest Non-NA Value Using zoo Package in R

How to Group Data by ID with R and Data.table: A Comparison of Two Solutions

Calculating y/y and w/w in a Data Frame: A Deep Dive

Selecting Highest Values per Group using R's data.table Package

Aggregating Columns from Multiple Data Frames in R Using dplyr and tidyr Libraries

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

Using the data.table Package for Efficient Data Manipulation: Adding a Vector of Values as a Column

Replacing NA Values with '-' Dynamically in Data.tables Using Cumulative Sum

Conditionally Filter Data.tables with Efficient and Readable R Code

Creating a Flag Indicating if Year Variable is in Range of Start:end Variables in data.table