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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 FREE CHAPTER
2. Chapter 1: Introduction to Power BI Data Cleaning 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

Understanding quality over quantity in data cleaning

When it comes to data cleaning, quality should always take precedence over quantity. While large datasets may initially seem enticing, the real value resides in the precision, dependability, and uniformity of the data. Imagine having a vast pool of data that is riddled with errors, duplications, and inconsistencies – the potential insights gleaned from such a dataset would be marred by inaccuracies and inefficiencies.

To illustrate this, consider a scenario where a retail company aims to analyze customer purchasing behavior to optimize its marketing strategies. If the data used for analysis contains duplicate entries, outdated information, or inaccuracies in customer preferences, the resulting insights could lead to misguided marketing campaigns, resulting in wasted resources and missed opportunities. In this context, the quality of data directly correlates with the reliability and accuracy of the conclusions drawn from...

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