Book Image

DAX Cookbook

By : Greg Deckler
Book Image

DAX Cookbook

By: Greg Deckler

Overview of this book

DAX provides an extra edge by extracting key information from the data that is already present in your model. Filled with examples of practical, real-world calculations geared toward business metrics and key performance indicators, this cookbook features solutions that you can apply for your own business analysis needs. You'll learn to write various DAX expressions and functions to understand how DAX queries work. The book also covers sections on dates, time, and duration to help you deal with working days, time zones, and shifts. You'll then discover how to manipulate text and numbers to create dynamic titles and ranks, and deal with measure totals. Later, you'll explore common business metrics for finance, customers, employees, and projects. The book will also show you how to implement common industry metrics such as days of supply, mean time between failure, order cycle time and overall equipment effectiveness. In the concluding chapters, you'll learn to apply statistical formulas for covariance, kurtosis, and skewness. Finally, you'll explore advanced DAX patterns for interpolation, inverse aggregators, inverse slicers, and even forecasting with a deseasonalized correlation coefficient. By the end of this book, you'll have the skills you need to use DAX's functionality and flexibility in business intelligence and data analytics.
Table of Contents (15 chapters)

Aggregating duration

Because DAX has no base data type for duration, adding durations has always been a little problematic, especially when attempting to display the end result in the HH:mm:ss format. This recipe allows you to aggregate durations and display them in an actual duration format (HH:mm:ss) within a column chart!

I will be forever grateful to Konstantinos Ioannou for first teaching me about DAX's VAR statement when I created an early version of this calculation. In addition, I would be remiss if I did not mention Chelsie Eiden, an intern that worked for Microsoft and added the crucial feature that allows custom display formatting for fields while preserving their underlying data type.

Getting ready

To prepare...