I’ll load data.table and import my CSV file using data.table’s fread () function. In the code below, I’m saving the data into a data table called mydt.

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.

Using What-If Analysis, you can visualize the effects of different variables, making it easier to assess risks and opportunities. In Excel, three primary tools are available for performing What-If ...