See how to join two data sets by one or more common columns using base R’s merge function, dplyr join functions, and the speedy data.table package. R has a number of quick, elegant ways to join data ...

Have you ever found yourself staring at multiple Excel tables, wondering how to make sense of the scattered data? Whether you’re managing sales reports, tracking inventory, or analyzing performance ...

Make your R data.table code more efficient and elegant with these special symbols and operators. Plus, learn about the new fcase() function R data.table code becomes more efficient — and elegant — ...