How-To Geek on MSN

How to use the MAP function in Microsoft Excel

Row precision vs. Aggregation errors: MAP is the best way to use "greedy" functions like AND or OR in a single, dynamic ...
How-To Geek on MSN

Excel's UNIQUE function can't skip columns—unless you use this trick

Nest CHOOSECOLS inside UNIQUE to extract non-adjacent columns, and use INDIRECT for interactive header dropdowns.
Geeky Gadgets

How to use Excel dynamic arrays in tables

What if you could unlock the full potential of Excel’s dynamic arrays within your tables, making your data management more efficient and powerful? Integrating dynamic arrays within Excel tables can be ...
InfoWorld

R data.table symbols and operators you should know

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 — ...