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DAX Cookbook

You're reading from   DAX Cookbook Over 120 recipes to enhance your business with analytics, reporting, and business intelligence

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Product type Paperback
Published in Mar 2020
Publisher Packt
ISBN-13 9781839217074
Length 552 pages
Edition 1st Edition
Languages
Tools
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Author (1):
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Greg Deckler Greg Deckler
Author Profile Icon Greg Deckler
Greg Deckler
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Table of Contents (15) Chapters Close

Preface 1. Thinking in DAX 2. Dealing with Dates and Calendars FREE CHAPTER 3. Tangling with Time and Duration 4. Transforming Text and Numbers 5. Figuring Financial Rates and Revenues 6. Computing Customer KPIs 7. Evaluating Employment Measures 8. Processing Project Performance 9. Calculating Common Industry Metrics 10. Using Uncommon DAX Patterns 11. Solving Statistical and Mathematical Formulas 12. Applying Advanced DAX Patterns 13. Debugging and Optimizing DAX 14. Other Books You May Enjoy

Approximating the area under a curve

Using polygons to approximate the area of curved shapes is a technique that has been known since ancient times. The concept is simple: draw polygons such as triangles or rectangles within the confines of a curved shape, calculate the area of those triangles and polygons, and you have approximated the area of a curved shape or under a curved line. Today, the technique is called a Riemann sum and is named after Bernhard Riemann, a German mathematician from the nineteenth century.

This recipe provides a method of approximating the area under a curve based upon the Riemann sum technique.

Getting ready

To prepare for this recipe, do the following:

  1. Open Power BI Desktop.
  2. Create a table called...
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