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)

Analyzing customer churn rate

In concept, the customer churn rate is fairly simple. The basic concept behind the customer churn rate is to measure how many customers leave a business within a given time period. The customer churn rate helps businesses identify whether they are growing or shrinking and whether or not there is some kind of problem within the business. An increasing churn rate can be an indication of something fundamentally wrong within the business or that there is a problem area that needs to be addressed.

The customer churn rate is perhaps most often used with subscription services and has thus received more attention as service and software providers move toward subscription models in the cloud. The churn rate is also an important metric required in the predictive calculation of customer lifetime value (CLTV), which has recently gained wide acceptance within...