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Hands-On Data Analysis with Pandas - Second Edition

You're reading from  Hands-On Data Analysis with Pandas - Second Edition

Product type Book
Published in Apr 2021
Publisher Packt
ISBN-13 9781800563452
Pages 788 pages
Edition 2nd Edition
Languages
Concepts
Author (1):
Stefanie Molin Stefanie Molin
Profile icon Stefanie Molin

Table of Contents (21) Chapters

Preface Section 1: Getting Started with Pandas
Chapter 1: Introduction to Data Analysis Chapter 2: Working with Pandas DataFrames Section 2: Using Pandas for Data Analysis
Chapter 3: Data Wrangling with Pandas Chapter 4: Aggregating Pandas DataFrames Chapter 5: Visualizing Data with Pandas and Matplotlib Chapter 6: Plotting with Seaborn and Customization Techniques Section 3: Applications – Real-World Analyses Using Pandas
Chapter 7: Financial Analysis – Bitcoin and the Stock Market Chapter 8: Rule-Based Anomaly Detection Section 4: Introduction to Machine Learning with Scikit-Learn
Chapter 9: Getting Started with Machine Learning in Python Chapter 10: Making Better Predictions – Optimizing Models Chapter 11: Machine Learning Anomaly Detection Section 5: Additional Resources
Chapter 12: The Road Ahead Solutions
Other Books You May Enjoy Appendix

Preprocessing data

In this section, we will be working in the preprocessing.ipynb notebook before we return to the notebooks we used for EDA. We will begin with our imports and read in the data:

>>> import numpy as np
>>> import pandas as pd
>>> planets = pd.read_csv('data/planets.csv')
>>> red_wine = pd.read_csv('data/winequality-red.csv')
>>> wine = pd.concat([
...     pd.read_csv(
...         'data/winequality-white.csv', sep=';'
...     ).assign(kind='white'), 
...     red_wine.assign(kind='red')
... ])

Machine learning models follow the garbage in, garbage out principle. We have to make sure that we train our models (have them learn) on the best possible version of the data. What this means will depend on the model we choose. For instance, models that...

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