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Hands-On Data Analysis with Pandas

Hands-On Data Analysis with Pandas

By : Stefanie Molin
4.6 (14)
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Hands-On Data Analysis with Pandas

Hands-On Data Analysis with Pandas

4.6 (14)
By: Stefanie Molin

Overview of this book

Extracting valuable business insights is no longer a ‘nice-to-have’, but an essential skill for anyone who handles data in their enterprise. Hands-On Data Analysis with Pandas is here to help beginners and those who are migrating their skills into data science get up to speed in no time. This book will show you how to analyze your data, get started with machine learning, and work effectively with the Python libraries often used for data science, such as pandas, NumPy, matplotlib, seaborn, and scikit-learn. Using real-world datasets, you will learn how to use the pandas library to perform data wrangling to reshape, clean, and aggregate your data. Then, you will learn how to conduct exploratory data analysis by calculating summary statistics and visualizing the data to find patterns. In the concluding chapters, you will explore some applications of anomaly detection, regression, clustering, and classification using scikit-learn to make predictions based on past data. This updated edition will equip you with the skills you need to use pandas 1.x to efficiently perform various data manipulation tasks, reliably reproduce analyses, and visualize your data for effective decision making – valuable knowledge that can be applied across multiple domains.
Table of Contents (21 chapters)
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1
Section 1: Getting Started with Pandas
4
Section 2: Using Pandas for Data Analysis
9
Section 3: Applications – Real-World Analyses Using Pandas
12
Section 4: Introduction to Machine Learning with Scikit-Learn
16
Section 5: Additional Resources
18
Solutions

Exercises

Complete the following exercises using what we have learned so far in this book and the data in the exercises/ directory:

  1. We want to look at data for the Facebook, Apple, Amazon, Netflix, and Google (FAANG) stocks, but we were given each as a separate CSV file (obtained using the stock_analysis package we will build in Chapter 7, Financial Analysis – Bitcoin and the Stock Market). Combine them into a single file and store the dataframe of the FAANG data as faang for the rest of the exercises:

    a) Read in the aapl.csv, amzn.csv, fb.csv, goog.csv, and nflx.csv files.

    b) Add a column to each dataframe, called ticker, indicating the ticker symbol it is for (Apple's is AAPL, for example); this is how you look up a stock. In this case, the filenames happen to be the ticker symbols.

    c) Append them together into a single dataframe.

    d) Save the result in a CSV file called faang.csv.

  2. With faang, use type conversion to cast the values of the date column into datetimes...
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