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Hands-On Machine Learning with IBM Watson

You're reading from   Hands-On Machine Learning with IBM Watson Leverage IBM Watson to implement machine learning techniques and algorithms using Python

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Product type Paperback
Published in Mar 2019
Publisher Packt
ISBN-13 9781789611854
Length 288 pages
Edition 1st Edition
Languages
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Author (1):
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James D. Miller James D. Miller
Author Profile Icon James D. Miller
James D. Miller
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Table of Contents (15) Chapters Close

Preface 1. Section 1: Introduction and Foundation
2. Introduction to IBM Cloud FREE CHAPTER 3. Feature Extraction - A Bag of Tricks 4. Supervised Machine Learning Models for Your Data 5. Implementing Unsupervised Algorithms 6. Section 2: Tools and Ingredients for Machine Learning in IBM Cloud
7. Machine Learning Workouts on IBM Cloud 8. Using Spark with IBM Watson Studio 9. Deep Learning Using TensorFlow on the IBM Cloud 10. Section 3: Real-Life Complete Case Studies
11. Creating a Facial Expression Platform on IBM Cloud 12. The Automated Classification of Lithofacies Formation Using ML 13. Building a Cloud-Based Multibiometric Identity Authentication Platform 14. Another Book You May Enjoy

Data cleansing and preparation

A common description for data cleansing and preparation is the work that goes into transforming raw data into a form that data scientists and analysts can more easily run through machine learning algorithms in an effort to uncover insights or make predictions based upon that data.

This process can be complicated by issues such as missing or incomplete records or simply finding extraneous columns of information within a data source.

In the previous example screenshot, we can see that the DataFrame object includes the columns country, description, designation, points, price, province, and so on.

As an exercise designed to demonstrate how easily we can use Python within Watson Studio to prepare data, let's suppose that we wanted to drop one or more columns from the DataFrame. To accomplish this task, we use the following Python statements:

to_drop...
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