Rolling Cross-Join on Portfolios Dataset to Impute Missing Shares in a Forward Manner Using R.

Decomposing Time Series Data in R using stats Package and data.table Alternative Methods

Understanding Data.table Differenced Operations with Dates in R

Extracting Last N Words from Character Columns in R Using Regular Expressions and String Manipulation

Calculating Relative Row Index Based on a Variable Value in R Using Data.table and dplyr

Mastering Dates in R: A Comprehensive Guide to Lubridate and data.table

Improving Readability and Maintainability: A Revised Data Transformation Function in R

Adding Seasonal Dummy Variables to a R Data.table: A Comparative Analysis of Two Approaches

Optimizing rmultinomial in a map2 function to data.table

Iterating Stepwise Regression Models Using Different Column Names with _y Suffix