R data.table code becomes more efficient — and elegant — when you take advantage of its special symbols and functions. With that in mind, we’ll look at some special ways to subset, count ...

Microsoft Excel's CHOOSECOLS and CHOOSEROWS functions are a game-changer if you want to quickly extract specific columns or rows from your data without nesting several functions in your formula ...

The number pad can be a helpful tool in the keyboard. Some users generally stick to the number row on the symbols page, but if you’re entering a long number like a software key or phone number ...

The latest Gboard beta includes references to features such as “flick keys to enter symbols,” which could mimic the iPad’s quick symbol access method. The “Password number row” feature ...