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 ...

In IDEP+ you can fill in the data manually in declaration, but you can also import the data from your own administration. - If you have to enter a lot of records per declaration. You can save a lot of ...

Before any data processing, we first need to import the data from a file into R. Common data formats include .csv (comma-separated values), .txt (tab-separated values), .xls, and .xlsx. R has built-in ...