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Machine Learning with R

Machine Learning with R - Second Edition

By : Brett Lantz
4.5 (40)
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Machine Learning with R

Machine Learning with R

4.5 (40)
By: Brett Lantz

Overview of this book

Updated and upgraded to the latest libraries and most modern thinking, Machine Learning with R, Second Edition provides you with a rigorous introduction to this essential skill of professional data science. Without shying away from technical theory, it is written to provide focused and practical knowledge to get you building algorithms and crunching your data, with minimal previous experience. With this book, you'll discover all the analytical tools you need to gain insights from complex data and learn how to choose the correct algorithm for your specific needs. Through full engagement with the sort of real-world problems data-wranglers face, you'll learn to apply machine learning methods to deal with common tasks, including classification, prediction, forecasting, market analysis, and clustering.
Table of Contents (14 chapters)
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13
Index

Chapter 5. Divide and Conquer – Classification Using Decision Trees and Rules

While deciding between several job offers with various levels of pay and benefits, many people begin by making lists of pros and cons, and eliminate options based on simple rules. For instance, ''if I have to commute for more than an hour, I will be unhappy.'' Or, ''if I make less than $50k, I won't be able to support my family.'' In this way, the complex and difficult decision of predicting one's future happiness can be reduced to a series of simple decisions.

This chapter covers decision trees and rule learners—two machine learning methods that also make complex decisions from sets of simple choices. These methods then present their knowledge in the form of logical structures that can be understood with no statistical knowledge. This aspect makes these models particularly useful for business strategy and process improvement.

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Machine Learning with R
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