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Statistics for Machine Learning

You're reading from   Statistics for Machine Learning Techniques for exploring supervised, unsupervised, and reinforcement learning models with Python and R

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Product type Paperback
Published in Jul 2017
Publisher Packt
ISBN-13 9781788295758
Length 442 pages
Edition 1st Edition
Languages
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Author (1):
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Pratap Dangeti Pratap Dangeti
Author Profile Icon Pratap Dangeti
Pratap Dangeti
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Table of Contents (10) Chapters Close

Preface 1. Journey from Statistics to Machine Learning FREE CHAPTER 2. Parallelism of Statistics and Machine Learning 3. Logistic Regression Versus Random Forest 4. Tree-Based Machine Learning Models 5. K-Nearest Neighbors and Naive Bayes 6. Support Vector Machines and Neural Networks 7. Recommendation Engines 8. Unsupervised Learning 9. Reinforcement Learning

Comparison between logistic regression and decision trees


Before we dive into the coding details of decision trees, here, we will quickly compare the differences between logistic regression and decision trees, so that we will know which model is better and in what way.

Logistic regression

Decision trees

Logistic regression model looks like an equation between independent variables with respect to its dependent variable.

Tree classifiers produce rules in simple English sentences, which can be easily explained to senior management.

Logistic regression is a parametric model, in which the model is defined by having parameters multiplied by independent variables to predict the dependent variable.

Decision Trees are a non-parametric model, in which no pre-assumed parameter exists. Implicitly performs variable screening or feature selection.

Assumptions are made on response (or dependent) variable, with binomial or Bernoulli distribution.

No assumptions are made on the underlying distribution of the data...

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