How-To Geek on MSN

Don't trust Excel's COUNTA function to count non-blank cells—here's a better method

In most counting scenarios in Excel, COUNTBLANK reliably counts blank cells, and COUNTA reliably counts populated cells.
Kenji Explains on MSN

Subtotal: The Excel function you didn't know you needed!

SUBTOTAL function in Excel full tutorial. 👉 Take our Excel Course: <a href=" 🆓 DOWNLOAD Free Excel file for this video: <a href=" The SUBTOTAL function in Excel is a better alternative to functions ...
Miami University

Using and Creating Functions

Although there are many functions in the base package of R, sometimes there may not be a function that does exactly what you want. In this case, R allows users to create their own functions and call ...
GitHub

Custom functions in Excel

Custom functions enable you to add new functions to Excel by defining those functions in JavaScript as part of an add-in. Users within Excel can access custom functions just as they would any native ...