Summing Partial Datatable as Column for Another Datatable in R Using data.table Package

Using eval to Dynamically Add Columns to a Contingency Table in R

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

Zone Allocation Problem: A Practical Approach Using R's allocate Function

Filling Values Based on Matched IDs in Data.tables Using R Programming Language

Efficiently Calculating New Data.table Columns by Row Values in R

Relative Reference Operations in Large Datasets Using Data Tables

Optimizing rmultinomial in a map2 function to data.table

Improving Efficiency of Phone Number Validation Function in R with Vectorized Operations

Summarizing Data with R and data.table: Advanced Techniques for Carrying Over Multiple Columns