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)

Finding working days for weeks, months, quarters, and years

Finding the first and last days of a month in DAX is fairly straightforward. The starting day of a month is always 1 and DAX includes a handy EOMONTH function to return the last day of a month. Similarly, finding the first and last days of a year is extremely straightforward considering that years always begin on January 1 and end on December 31. Nevertheless, things become trickier when attempting to find the first and last day of a week and become much, much trickier when trying to identify the first working day of a week, month, or year.

However, since most businesses have the concept of a work week that includes work days and non-work days, it is often important to be able to identify the first and last working days of weeks, months, and years. Luckily, this recipe shows exactly how to accomplish finding the first...