I use these functions to summarize data with formulas instead of dialog boxes. That makes it easier to see exactly what's happening and adjust analysis on the fly. If you're also comfortable with ...

While I'll always argue that SUM is my favorite and most-used Excel formula, there are plenty of other powerful functions included in the software. These features go far past using Excel as a digital ...

Say I can pass several commands to my program, and each command corresponds to a function.<BR><BR>How can I call this function without a lot of if-else? To add a little seasoning, I also need to pass ...

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 — ...