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Applying Math with Python

You're reading from   Applying Math with Python Practical recipes for solving computational math problems using Python programming and its libraries

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Product type Paperback
Published in Jul 2020
Publisher Packt
ISBN-13 9781838989750
Length 358 pages
Edition 1st Edition
Languages
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Authors (2):
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Sam Morley Sam Morley
Author Profile Icon Sam Morley
Sam Morley
Sam Morley Sam Morley
Author Profile Icon Sam Morley
Sam Morley
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Table of Contents (12) Chapters Close

Preface 1. Basic Packages, Functions, and Concepts 2. Mathematical Plotting with Matplotlib FREE CHAPTER 3. Calculus and Differential Equations 4. Working with Randomness and Probability 5. Working with Trees and Networks 6. Working with Data and Statistics 7. Regression and Forecasting 8. Geometric Problems 9. Finding Optimal Solutions 10. Miscellaneous Topics 11. Other Books You May Enjoy

Classifying using logarithmic regression

        

Logarithmic regression solves a different problem to ordinary linear regression. It is commonly used for classification problems where, typically, we wish to classify data into two distinct groups, according to a number of predictor variables. Underlying this technique is a transformation that's performed using logarithms. The original classification problem is transformed into a problem of constructing a model for the log-odds. This model can be completed with simple linear regression. We apply the inverse transformation to the linear model, which leaves us with a model of the probability that the desired outcome will occur, given the predictor data. The transform we apply here is called the logistic function, which gives its name to the method. The probability we obtain can then be used in the classification problem we originally aimed to solve.

In this recipe, we will learn how to perform logistic regression and use this...

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