Creating New Columns with Data.table: A More Optimized Approach Using set()

Efficient Data Manipulation in R: Grouping Multiple Files and Creating New Columns

Using Binary Search to Subset Data Tables Based on NA Values in R

Filtering Data.table on Multiple Criteria in the Same Column Using Various Methods in R

Finding Duplicates after Cutoff Row with data.table

Ranking Observations Across Multiple Groups Using R's Data Table Package

Calculating Covariance Matrices from Community Lists with Grouping Factors Using R's data.table Package

Using Multiple Columns from a Function Call with Data.tables in R: A More Efficient Approach

Calculating Logarithmic Growth Rates and Grouping by Two Variables: A Comprehensive Guide with R

Optimizing Multivariate Row Subsetting of Data.tables Using Vectors and setkeyv() Function