Q. You explained Excel’s Scenario Manager in your November 2024 Tech Q&A article and Goal Seek in your December 2024 Tech Q&A article. Can you please explain the final What-If Analysis tool: Data ...

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 ...

Excel’s data validation feature is more versatile than you might think. Learn how to use literal values, input values, list values, and even formulas to restrict input date values using data ...

How do I do that in data.table? Find code for dozens of data tasks in this searchable cheat sheet of R data.table and Tidyverse code. Speed. Concise syntax. Backwards compatibility. But especially ...

Sometimes the current Microsoft Excel data structure doesn’t match requirements of other users and software. Learn how to combine columnar values into a single cell using Microsoft Excel’s Power Query ...

My weekly spreadsheet audit is gone, and I haven't missed it once.