Filtering Columns in Data Tables by Vector of Names Using data.table

Efficiently Counting Unique Purchases Per Customer with R's data.table Package

How to Create a Counter Column in R's Data.table Package Using Cumulative Sums

Removing All Data Points Where First Row Exceeds Specific Threshold by Client ID Grouping with data.table Package in R

Working with Data Tables in R: Mastering Column Assignments with data.table Package

Subset and Replace Rows and Columns in a data.table Efficiently in R

Iterating Over a Table to Get All Possible Successors Using Graph Theory and Data Manipulation Techniques

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

Understanding Data.table Vectorized Functions and Column References

Understanding the Performance Advantage of R's String Manipulation Function: Using str_c() in data.table