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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

Exploratory Data Analysis


We will get started with the dataset available to download from UCI ML Repository at https://archive.ics.uci.edu/ml/datasets/Bank%20Marketing.

Download the ZIP file and extract it to a folder in your workspace and use the file named bank-additional-full.csv. Ask the students to start a new Jupyter notebook or an IDE of their choice and load the data into memory.

Exercise 18: Studying the Data Dimensions

Let's quickly ingest the data using the simple commands we explored in the previous chapter and take a look at a few essential characteristics of the dataset.

We are exploring the length and breadth of the data, that is, the number of rows and columns, the names of each column, the data type of each column, and a high-level view of what is stored in each column.

Perform the following steps to explore the bank dataset:

  1. First, import all the required libraries in RStudio:

    library(dplyr)
    library(ggplot2)
    library(repr)
    library(cowplot)
  2. Now, use the option method to set the width...

CONTINUE READING
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