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

Exercises

  1. In your own words, describe the relationship between the analytics goals and data cleaning. Your response should answer the following questions:

    a) Is data cleaning a separate step of data analytics and can be done in isolation? In other words, can data cleaning be performed without you knowing about the analytics process?

    b) If the answer to the previous question is no, are there any types of data cleaning that can be done in isolation?

    c) What is the role of analytic tools in the relationship between analytic goals and data cleaning?

  2. A local airport that analyzes the usage of its parking has employed a Single-Beam Infrared Detector (SBID) technology to count the number of people who pass the gate from the parking area to the airport.

    As shown in the following diagram, an SBDI records every time the infrared connection is blocked, signaling a passenger entering or exiting:

Figure 9.7 – An example of a Single-Beam Infrared Detector (SBID...