You're reading from Time Series Analysis with Python Cookbook Practical recipes for exploratory data analysis, data preparation, forecasting, and model evaluation

Product type Paperback

Published in Jun 2022

Publisher Packt

ISBN-13 9781801075541

Length 630 pages

Edition 1st Edition

Languages

Python

Tools

Keras

Concepts

Data Analysis

Author (1):

Tarek A. Atwan

View More author details

Table of Contents (18) Chapters

Preface

1. Chapter 1: Getting Started with Time Series Analysis

2. Chapter 2: Reading Time Series Data from Files FREE CHAPTER

3. Chapter 3: Reading Time Series Data from Databases

4. Chapter 4: Persisting Time Series Data to Files

5. Chapter 5: Persisting Time Series Data to Databases

6. Chapter 6: Working with Date and Time in Python

7. Chapter 7: Handling Missing Data

8. Chapter 8: Outlier Detection Using Statistical Methods

9. Chapter 9: Exploratory Data Analysis and Diagnosis

10. Chapter 10: Building Univariate Time Series Models Using Statistical Methods

11. Chapter 11: Additional Statistical Modeling Techniques for Time Series

12. Chapter 12: Forecasting Using Supervised Machine Learning

13. Chapter 13: Deep Learning for Time Series Forecasting

14. Chapter 14: Outlier Detection Using Unsupervised Machine Learning

15. Chapter 15: Advanced Techniques for Complex Time Series

16. Index

Why subscribe?

17. Other Books You May Enjoy

Detecting outliers using the Tukey method

This recipe will extend on the previous recipe, Detecting outliers using visualizations. In Figure 8.5, the box plot showed the quartiles with whiskers extending to the upper and lower fences. These boundaries or fences were calculated using the Tukey method.

Let's expand on Figure 8.5 with additional information on the other components:

Figure 8.10 – Box plot for the daily average taxi passengers data

Visualizations are great to give you a high-level perspective on the data you are working with, such as the overall distribution and potential outliers. Ultimately you want to identify these outliers programmatically so you can isolate these data points for further investigation and analysis. This recipe will teach how to calculate IQR and define points that fall outside the lower and upper Tukey fences.