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Python Data Analysis

You're reading from   Python Data Analysis Perform data collection, data processing, wrangling, visualization, and model building using Python

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Product type Paperback
Published in Feb 2021
Publisher Packt
ISBN-13 9781789955248
Length 478 pages
Edition 3rd Edition
Languages
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Authors (2):
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Ivan Idris Ivan Idris
Author Profile Icon Ivan Idris
Ivan Idris
Avinash Navlani Avinash Navlani
Author Profile Icon Avinash Navlani
Avinash Navlani
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Toc

Table of Contents (20) Chapters Close

Preface 1. Section 1: Foundation for Data Analysis
2. Getting Started with Python Libraries FREE CHAPTER 3. NumPy and pandas 4. Statistics 5. Linear Algebra 6. Section 2: Exploratory Data Analysis and Data Cleaning
7. Data Visualization 8. Retrieving, Processing, and Storing Data 9. Cleaning Messy Data 10. Signal Processing and Time Series 11. Section 3: Deep Dive into Machine Learning
12. Supervised Learning - Regression Analysis 13. Supervised Learning - Classification Techniques 14. Unsupervised Learning - PCA and Clustering 15. Section 4: NLP, Image Analytics, and Parallel Computing
16. Analyzing Textual Data 17. Analyzing Image Data 18. Parallel Computing Using Dask 19. Other Books You May Enjoy

Exploring data

In this section, we will explore data by performing Exploratory Data Analysis (EDA). EDA is the most critical and most important component of the data analysis process. EDA offers the following benefits:

  • It provides an initial glimpse of data and its context.
  • It captures quick insights and identifies the potential drivers from the data for predictive analysis. It finds the queries and questions that can be answered for decision-making purposes.
  • It assesses the quality of the data and helps us build the road map for data cleaning and preprocessing.
  • It finds missing values, outliers, and the importance of features for analysis.
  • EDA uses descriptive statistics and visualization techniques to explore data.

In EDA, the first step is to read the dataset. We can read the dataset using pandas. The pandas library offers various options for reading data. It can read files in various formats, such as CSV, Excel, JSON, parquet, HTML, and pickle. All these methods were covered in...

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