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)

Tinkering with time zones

Ah, time zones. Such a simple concept that has caused so much havoc in the world of software development through the years! There are no functions in DAX that really address time zones, but it is often a requirement to convert date and timestamps in one time zone into date and timestamps in a different time zone. This can be especially true when dealing with log files as a data source. This recipe demonstrates how to convert date and timestamps in one time zone into date and timestamps in a different time zone.

Getting ready

To prepare for this recipe, do the following:

  1. Open Power BI Desktop and create a table called R09_Timezones by importing the Timezones.csv file from GitHub here: https://github...