Learn What GROUPBY Can Really Do in Excel : From Smart Sorting to Percent of Totals

Learn how GROUPBY passes both subset and full arrays into LAMBDA in Excel, letting you compute percent shares fast and explain results clearly.

Build Faster Excel Workflows Using FILTER, IFS, XLOOKUP, and LET for Real-World Data

Learn the difference between Excel COUNT and COUNTA, plus TEXTBEFORE and TEXTAFTER tricks, so you clean text and totals with ...

Understanding Single-Step and Multiple-Step Income Statements

Discover the differences, advantages, and drawbacks of single-step vs. multiple-step income statements for better financial ...

Logitech discount codes for [month] [year] | [offer label]

Sign up for a Logitech account and enter your date of birth, and you get a discount code in time for your birthday. You get 10% off full-price keyboards, mice, and other products. It's simple to sign ...
C&EN

DMsan: A Multi-Criteria Decision Analysis Framework and Package to Characterize Contextualized Sustainability of Sanitation and Resource Recovery Technologies

Department of Civil and Environmental Engineering, 3221 Newmark Civil Engineering Laboratory, University of Illinois Urbana-Champaign, 205 N. Mathews Avenue, Urbana, Illinois 61801, United States ...