Microsoft Excel 2010 can convert a worksheet to a data table to help you quickly analyze your related data in formatted rows and columns. When you need to expand the table layout, apply the Home tab ...

Whole-column references in Excel are silent performance killers, often forcing the program to manage a range of over a ...

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 — ...

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 ...

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 ...

Excel 365 offers a powerful feature known as calculated columns, which significantly improves your data analysis capabilities. This tool allows you to create dynamic calculations that automatically ...

Designing an appropriate set of indexes can be one of the more troubling aspects of developing efficient relational database applications. Perhaps, the most important thing you can do to assure ...

I recently published a tutorial describing the different available methods to store data locally in an Android app. However, due to article length constraints, I could not adequately cover creating ...

Use Excel data validation to prevent duplicate values in a column Your email has been sent Prevent duplicates before they happen by combining a simple function with data validation. Excel has built-in ...