Book Image

Hands-On Data Preprocessing in Python

By : Roy Jafari
5 (2)
Book Image

Hands-On Data Preprocessing in Python

5 (2)
By: Roy Jafari

Overview of this book

Hands-On Data Preprocessing is a primer on the best data cleaning and preprocessing techniques, written by an expert who’s developed college-level courses on data preprocessing and related subjects. With this book, you’ll be equipped with the optimum data preprocessing techniques from multiple perspectives, ensuring that you get the best possible insights from your data. You'll learn about different technical and analytical aspects of data preprocessing – data collection, data cleaning, data integration, data reduction, and data transformation – and get to grips with implementing them using the open source Python programming environment. The hands-on examples and easy-to-follow chapters will help you gain a comprehensive articulation of data preprocessing, its whys and hows, and identify opportunities where data analytics could lead to more effective decision making. As you progress through the chapters, you’ll also understand the role of data management systems and technologies for effective analytics and how to use APIs to pull data. By the end of this Python data preprocessing book, you'll be able to use Python to read, manipulate, and analyze data; perform data cleaning, integration, reduction, and transformation techniques, and handle outliers or missing values to effectively prepare data for analytic tools.
Table of Contents (24 chapters)
1
Part 1:Technical Needs
6
Part 2: Analytic Goals
11
Part 3: The Preprocessing
18
Part 4: Case Studies

Exercise

  1. In this exercise, we will be using Universities_imputed_reduced.csv. Draw the following visualizations:

    a) Use boxplots to compare the student/faculty ratio (stud./fac. ratio) for the two populations of public and private universities.

    b) Use a histogram to compare the student/faculty ratio (stud./fac. ratio) for the two populations of public and private universities.

    c) Use subplots to put the results of a) and b) on top of one another to create a visual that compares the two populations even better.

  2. In this exercise, we will continue using Universities_imputed_reduced.csv. Draw the following visualizations:

    a) Use a bar chart to compare the private/public ratio of all the states in the dataset. In this example, the populations we are comparing are the states.

    b) Improve the visualizations by sorting the states on the visuals based on the total number of universities they have.

    c) Create a stacked bar chart that shows and compares the percentages of public and private...