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Data Wrangling with Python

You're reading from   Data Wrangling with Python Creating actionable data from raw sources

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Product type Paperback
Published in Feb 2019
Publisher Packt
ISBN-13 9781789800111
Length 452 pages
Edition 1st Edition
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Authors (2):
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Shubhadeep Roychowdhury Shubhadeep Roychowdhury
Author Profile Icon Shubhadeep Roychowdhury
Shubhadeep Roychowdhury
Dr. Tirthajyoti Sarkar Dr. Tirthajyoti Sarkar
Author Profile Icon Dr. Tirthajyoti Sarkar
Dr. Tirthajyoti Sarkar
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Table of Contents (12) Chapters Close

Data Wrangling with Python
Preface
1. Introduction to Data Wrangling with Python FREE CHAPTER 2. Advanced Data Structures and File Handling 3. Introduction to NumPy, Pandas, and Matplotlib 4. A Deep Dive into Data Wrangling with Python 5. Getting Comfortable with Different Kinds of Data Sources 6. Learning the Hidden Secrets of Data Wrangling 7. Advanced Web Scraping and Data Gathering 8. RDBMS and SQL 9. Application of Data Wrangling in Real Life Appendix

Statistics and Visualization with NumPy and Pandas


One of the great advantages of using libraries such as NumPy and pandas is that a plethora of built-in statistical and visualization methods are available, for which we don't have to search for and write new code. Furthermore, most of these subroutines are written using C or Fortran code (and pre-compiled), making them extremely fast to execute.

Refresher of Basic Descriptive Statistics (and the Matplotlib Library for Visualization)

For any data wrangling task, it is quite useful to extract basic descriptive statistics from the data and create some simple visualizations/plots. These plots are often the first step in identifying fundamental patterns as well as oddities (if present) in the data. In any statistical analysis, descriptive statistics is the first step, followed by inferential statistics, which tries to infer the underlying distribution or process from which the data might have been generated.

As the inferential statistics are intimately...

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