#### 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.
Preface
Thinking in DAX
Tangling with Time and Duration
Transforming Text and Numbers
Evaluating Employment Measures
Processing Project Performance
Calculating Common Industry Metrics
Solving Statistical and Mathematical Formulas
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# Evaluating Employment Measures

Employees are the lifeblood of every business. Without employees, work does not get accomplished, value is not added to goods and services, and customers go wanting. Thus it makes sense that savvy businesses will want to keep track of their employees in terms of employee engagement at work, whether their employees are satisfied with work or not, how often employees leave the company, and perhaps how often employees have unexcused absences. This chapter has many useful recipes to help you analyze employee metrics and KPIs, such as when employees leave or are likely to leave, which employees are advocates for the business, and how much profit employees add to the business.

The following is the list of recipes that we will cover in this chapter:

• Calculating employee turnover rate
• Computing absenteeism
• Evaluating employee engagement
• Determining human...