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Hands-On Data Science and Python Machine Learning

You're reading from   Hands-On Data Science and Python Machine Learning Perform data mining and machine learning efficiently using Python and Spark

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Product type Paperback
Published in Jul 2017
Publisher Packt
ISBN-13 9781787280748
Length 420 pages
Edition 1st Edition
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Author (1):
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Frank Kane Frank Kane
Author Profile Icon Frank Kane
Frank Kane
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Table of Contents (11) Chapters Close

Preface 1. Getting Started FREE CHAPTER 2. Statistics and Probability Refresher, and Python Practice 3. Matplotlib and Advanced Probability Concepts 4. Predictive Models 5. Machine Learning with Python 6. Recommender Systems 7. More Data Mining and Machine Learning Techniques 8. Dealing with Real-World Data 9. Apache Spark - Machine Learning on Big Data 10. Testing and Experimental Design

Bayes' theorem

Now that you understand conditional probability, you can understand how to apply Bayes' theorem, which is based on conditional probability. It's a very important concept, especially if you're going into the medical field, but it is broadly applicable too, and you'll see why in a minute.

You'll hear about this a lot, but not many people really understand what it means or its significance. It can tell you very quantitatively sometimes when people are misleading you with statistics, so let's see how that works.

First, let's talk about Bayes' theorem at a high level. Bayes' theorem is simply this: the probability of A given B is equal to the probability of A times the probability of B given A over the probability of B. So you can substitute A and B with whatever you want.

The key insight is that the probability of something...
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