A data table alone has no axes, horizontal or otherwise. It consists of points of data; each point describes at least two pieces of information. Other points convey different numerical data about the ...

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 ...

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 ...

For some data.table users, “dot-SD” is a bit of a mystery. But data.table creator Matt Dowle told me that it’s actually quite simple: Just think of it as a symbol representing “each group.” Let’s go ...

Microsoft Access is a database management system program that combines the relational Access Database Engine with a graphical user interface and software development tools. In Microsoft Access, you ...

Excel used to be the poor schmuck’s database, with spreadsheets that just sort of sat there. You could create something more sophisticated with LOOKUP functions, but they were a huge hassle to set up.

When you create a Microsoft Access table, Access will automatically create a primary key to your database table. Still, you can also specify the field you want as the primary key for your database ...