Addressing Data.table Columns Based on Two grep() Commands in R

Resolving Unused Argument Errors While Grouping within Functions in R

Incremental Counter within DataFrame only When a Condition is Met in R Using cumsum() with factor() and as.integer().

Assigning Values from a List to Columns in a Data.table

Data Manipulation with data.table in R: A Comprehensive Guide to Updating Values Based on Conditions

Understanding How to Efficiently Split and Reassemble Data in R Using data.table

Transforming Financial Data with R: A Step-by-Step Approach to Analysis

Applying .GRP to Multiple Columns in data.table R for Separate Grouping

Effective Data Table Lookups in R: Leveraging Key Sets for Efficient Results

Replacing NAs with Latest Non-NA Value Using R's zoo Package