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Python Data Cleaning and Preparation Best Practices

You're reading from   Python Data Cleaning and Preparation Best Practices A practical guide to organizing and handling data from various sources and formats using Python

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Product type Paperback
Published in Sep 2024
Publisher Packt
ISBN-13 9781837634743
Length 456 pages
Edition 1st Edition
Languages
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Author (1):
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Maria Zervou Maria Zervou
Author Profile Icon Maria Zervou
Maria Zervou
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Table of Contents (19) Chapters Close

Preface 1. Part 1: Upstream Data Ingestion and Cleaning
2. Chapter 1: Data Ingestion Techniques FREE CHAPTER 3. Chapter 2: Importance of Data Quality 4. Chapter 3: Data Profiling – Understanding Data Structure, Quality, and Distribution 5. Chapter 4: Cleaning Messy Data and Data Manipulation 6. Chapter 5: Data Transformation – Merging and Concatenating 7. Chapter 6: Data Grouping, Aggregation, Filtering, and Applying Functions 8. Chapter 7: Data Sinks 9. Part 2: Downstream Data Cleaning – Consuming Structured Data
10. Chapter 8: Detecting and Handling Missing Values and Outliers 11. Chapter 9: Normalization and Standardization 12. Chapter 10: Handling Categorical Features 13. Chapter 11: Consuming Time Series Data 14. Part 3: Downstream Data Cleaning – Consuming Unstructured Data
15. Chapter 12: Text Preprocessing in the Era of LLMs 16. Chapter 13: Image and Audio Preprocessing with LLMs 17. Index 18. Other Books You May Enjoy

Exploratory data analysis options – profiler versus manual

When performing exploratory data analysis (EDA), there are different approaches you can take to understand your data, including conducting manual analysis or using a profiler.

Manual EDA involves writing custom code or using general-purpose data analysis libraries (e.g., pandas in Python) to explore the data. It gives you more flexibility and control over the analysis process. You can customize the analysis based on your specific requirements and questions. Manual EDA allows for more in-depth exploration, including custom calculations, feature engineering, and advanced visualizations. It can be beneficial when dealing with complex data or when you have specific domain knowledge that you want to apply to the analysis.

A profiler is a tool or library specifically designed for analyzing and summarizing data. It automates many EDA tasks and provides quick insights into the data’s structure, summary statistics...

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