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Applied Supervised Learning with R

You're reading from   Applied Supervised Learning with R Use machine learning libraries of R to build models that solve business problems and predict future trends

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Product type Paperback
Published in May 2019
Publisher
ISBN-13 9781838556334
Length 502 pages
Edition 1st Edition
Languages
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Authors (2):
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Jojo Moolayil Jojo Moolayil
Author Profile Icon Jojo Moolayil
Jojo Moolayil
Karthik Ramasubramanian Karthik Ramasubramanian
Author Profile Icon Karthik Ramasubramanian
Karthik Ramasubramanian
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Table of Contents (12) Chapters Close

Applied Supervised Learning with R
Preface
1. R for Advanced Analytics FREE CHAPTER 2. Exploratory Analysis of Data 3. Introduction to Supervised Learning 4. Regression 5. Classification 6. Feature Selection and Dimensionality Reduction 7. Model Improvements 8. Model Deployment 9. Capstone Project - Based on Research Papers Appendix

Univariate Analysis


Univariate analysis is the study of a single feature/variable. Here, we describe the data to help us get an overall view of how it is organized. For numeric features, such as age, duration, nr.employed (numeric features in the dataset) and many others, we look at summary statistics such as min, max, mean, standard deviation, and percentile distribution. These measures together help us understand the spread of the data. Similarly, for categorical features such as job, marital, and education, we need to study the distinct values in the feature and the frequency of these values. To accomplish this, we can implement a few analytical, visual, and statistical techniques. Let's take a look at the analytical and visual techniques for exploring numeric features.

Exploring Numeric/Continuous Features

If you explored the previous output snippet, you might have noted that we have a mix of numeric and categorical features in the dataset. Let's start by looking at the first feature in...

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