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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

Studying the Relationship between a Categorical and a Numeric Variable


Let's first recall the methods discussed to study the relationship between the numeric and categorical variable and discuss the approach to execute it.

In this section, we will discuss the different aggregation metrics that we can use for summarizing the data. So far, we have used avg, but a better approach would be to use a combination of avg, min, max, and other metrics.

Exercise 31: Studying the Relationship between the y and age Variables

We have a categorical dependent variable and nine numeric variables to explore. To start small, we will first explore the relationship between our target, y, and age. To study the relationship between a categorical and numeric variable, we can choose a simple analytical technique where we calculate the average age across each target outcome; if we see stark differences, we can make insights from the observations.

In this exercise, we will calculate the average age across each target...

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