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Hands-On Data Science with Anaconda

You're reading from   Hands-On Data Science with Anaconda Utilize the right mix of tools to create high-performance data science applications

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Product type Paperback
Published in May 2018
Publisher Packt
ISBN-13 9781788831192
Length 364 pages
Edition 1st Edition
Languages
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Authors (2):
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James Yan James Yan
Author Profile Icon James Yan
James Yan
Yuxing Yan Yuxing Yan
Author Profile Icon Yuxing Yan
Yuxing Yan
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Table of Contents (15) Chapters Close

Preface 1. Ecosystem of Anaconda FREE CHAPTER 2. Anaconda Installation 3. Data Basics 4. Data Visualization 5. Statistical Modeling in Anaconda 6. Managing Packages 7. Optimization in Anaconda 8. Unsupervised Learning in Anaconda 9. Supervised Learning in Anaconda 10. Predictive Data Analytics – Modeling and Validation 11. Anaconda Cloud 12. Distributed Computing, Parallel Computing, and HPCC 13. References 14. Other Books You May Enjoy

Detecting outliers and treatments

First, a word of caution: one person's waste might be another person's treasure, and this is true for outliers. For example, for the week of 2/5/2018 to 2/15/2018, the Dow Jones Industrial Average (DJIA) suffers a huge loss. Cheng and Hum (2018) show that the index travels more than 22,000 points, as shown in the following table:

Weekday
Points

Monday

5,113

Tuesday

5,460

Wednesday

2,886

Thursday

3,369

Friday

5,425

Total

22,253

Table 5.1 Dow Jones industrial average points traveled

If we want to study the relationship between a stock and the DJIA index, the observations might be treated as outliers. However, when studying the topic related to the impact of the market on individual stocks, we should pay special attention to those observations. In other words, those observations should not be...

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