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  • Book Overview & Buying Applied Supervised Learning with R
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Applied Supervised Learning with R

Applied Supervised Learning with R

By : Karthik Ramasubramanian, Jojo Moolayil
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Applied Supervised Learning with R

Applied Supervised Learning with R

By: Karthik Ramasubramanian, Jojo Moolayil

Overview of this book

R provides excellent visualization features that are essential for exploring data before using it in automated learning. Applied Supervised Learning with R helps you cover the complete process of employing R to develop applications using supervised machine learning algorithms for your business needs. The book starts by helping you develop your analytical thinking to create a problem statement using business inputs and domain research. You will then learn different evaluation metrics that compare various algorithms, and later progress to using these metrics to select the best algorithm for your problem. After finalizing the algorithm you want to use, you will study the hyperparameter optimization technique to fine-tune your set of optimal parameters. The book demonstrates how you can add different regularization terms to avoid overfitting your model. By the end of this book, you will have gained the advanced skills you need for modeling a supervised machine learning algorithm that precisely fulfills your business needs.
Table of Contents (12 chapters)
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Applied Supervised Learning with R
Preface

Validating Insights Using Statistical Tests


Throughout the journey of EDA, we have collected and noted some interesting patterns for further validation. It is now the right time to test whether whatever we observed previously are actually valid patterns or just appeared to be interesting due to random chance. The most effective and straightforward way to approach this validation is by performing a set of statistical tests and measuring the statistical significance of the pattern. We have a ton of options in the available set of tests to choose from. The options vary based on the type of independent and dependent variable. The following is a handy reference diagram that explains the types of statistical test that we can perform to validate our observed patterns:

Figure 2.24: Validating dependent and independent variables

Let's collect all our interesting patterns into one place here:

  • The campaign outcome has a higher chance of yes when the employee variance rate is low.

  • The campaign outcome has...

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