Want to organize all the worksheets in your Excel workbook? Try creating a table of contents. It makes it easy to find ...

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.

Step 1: Prepare your data. Perhaps the most important step in using Excel pivot tables is to carefully organize your data. The easiest way to do this is to use Excel tables, which let you add rows ...