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Data Cleaning with Power BI

You're reading from   Data Cleaning with Power BI The definitive guide to transforming dirty data into actionable insights

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Product type Paperback
Published in Feb 2024
Publisher
ISBN-13 9781805126409
Length 340 pages
Edition 1st Edition
Languages
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Author (1):
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Gus Frazer Gus Frazer
Author Profile Icon Gus Frazer
Gus Frazer
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Table of Contents (23) Chapters Close

Preface 1. Part 1 – Introduction and Fundamentals
2. Chapter 1: Introduction to Power BI Data Cleaning FREE CHAPTER 3. Chapter 2: Understanding Data Quality and Why Data Cleaning is Important 4. Chapter 3: Data Cleaning Fundamentals and Principles 5. Chapter 4: The Most Common Data Cleaning Operations 6. Part 2 – Data Import and Query Editor
7. Chapter 5: Importing Data into Power BI 8. Chapter 6: Cleaning Data with Query Editor 9. Chapter 7: Transforming Data with the M Language 10. Chapter 8: Using Data Profiling for Exploratory Data Analysis (EDA) 11. Part 3 – Advanced Data Cleaning and Optimizations
12. Chapter 9: Advanced Data Cleaning Techniques 13. Chapter 10: Creating Custom Functions in Power Query 14. Chapter 11: M Query Optimization 15. Chapter 12: Data Modeling and Managing Relationships 16. Part 4 – Paginated Reports, Automations, and OpenAI
17. Chapter 13: Preparing Data for Paginated Reporting 18. Chapter 14: Automating Data Cleaning Tasks with Power Automate 19. Chapter 15: Making Life Easier with OpenAI 20. Assessments 21. Index 22. Other Books You May Enjoy

What is data quality?

Firstly, before diving into how you can leverage Power BI to clean your data, it’s important to understand some key basics of what will affect your data quality.

Data quality is essential for accurate analysis, informed decision-making, and successful business outcomes. Understanding factors that affect data quality and recognizing the importance of data cleaning are crucial steps in the data preparation process.

In general, several factors describe and make up the quality of a dataset for analysis, which we will dive into further in the following list:

  • Data accuracy: Data accuracy means the extent to which data represents the true values and attributes it is intended to capture, indicating the degree to which it aligns with the true, real-world information it seeks to represent. Factors such as human errors during data entry, system glitches, or outdated information can compromise data accuracy.
  • Data completeness: This describes the degree...
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