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Essential Statistics for Non-STEM Data Analysts

You're reading from   Essential Statistics for Non-STEM Data Analysts Get to grips with the statistics and math knowledge needed to enter the world of data science with Python

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Product type Paperback
Published in Nov 2020
Publisher Packt
ISBN-13 9781838984847
Length 392 pages
Edition 1st Edition
Languages
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Author (1):
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Rongpeng Li Rongpeng Li
Author Profile Icon Rongpeng Li
Rongpeng Li
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Table of Contents (19) Chapters Close

Preface 1. Section 1: Getting Started with Statistics for Data Science
2. Chapter 1: Fundamentals of Data Collection, Cleaning, and Preprocessing FREE CHAPTER 3. Chapter 2: Essential Statistics for Data Assessment 4. Chapter 3: Visualization with Statistical Graphs 5. Section 2: Essentials of Statistical Analysis
6. Chapter 4: Sampling and Inferential Statistics 7. Chapter 5: Common Probability Distributions 8. Chapter 6: Parametric Estimation 9. Chapter 7: Statistical Hypothesis Testing 10. Section 3: Statistics for Machine Learning
11. Chapter 8: Statistics for Regression 12. Chapter 9: Statistics for Classification 13. Chapter 10: Statistics for Tree-Based Methods 14. Chapter 11: Statistics for Ensemble Methods 15. Section 4: Appendix
16. Chapter 12: A Collection of Best Practices 17. Chapter 13: Exercises and Projects 18. Other Books You May Enjoy

Chapter 10: Statistics for Tree-Based Methods

In the previous chapter, we covered some important concepts in classification models. We also built a naïve Bayes classifier from scratch, which is very important because it requires you to understand every aspect of the details.

In this chapter, we are going to dive into another family of statistical models that are also widely used in statistical analysis as well as machine learning: tree-based models. Tree-based models can be used for both classification tasks and regression tasks.

By the end of this chapter, you will have achieved the following:

  • Gained an overview of tree-based classification
  • Understood the details of classification tree building
  • Understood the mechanisms of regression trees
  • Know how to use the scikit-learn library to build and regularize a tree-based method

Let's get started! All the code snippets used in this chapter can be found in the official GitHub repository here: https...

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