To get the most out of this book

The projects covered in this book are intended to expose you to practical knowledge on the implementation of various ML techniques to real-world problems. It is expected that you have a good working knowledge of R and some basic understanding of ML. Basic knowledge of ML and R is a must prior to starting this project.

It should also be noted that the code for the projects is implemented using R version 3.5.2 (2018-12-20), nicknamed Eggshell Igloo. The project code has been successfully tested on Linux Mint 18.3 Sylvia. There is no reason to believe that the code does not work on other platforms, such as Windows; however, this is not something that has been tested by the author.

Download the example code files

You can download the example code files for this book from your account at www.packt.com. If you purchased this book elsewhere, you can visit www.packt.com/support and register to have the files emailed directly to you.

You can download the code files by following these steps:

1. Log in or register at www.packt.com.
2. Select the SUPPORT tab.
3. Click on Code Downloads & Errata.
4. Enter the name of the book in the Search box and follow the onscreen instructions.

Once the file is downloaded, please make sure that you unzip or extract the folder using the latest version of:

• WinRAR/7-Zip for Windows
• Zipeg/iZip/UnRarX for Mac
• 7-Zip/PeaZip for Linux

The code bundle for the book is also hosted on GitHub at https://github.com/PacktPublishing/R-Machine-Learning-Projects. In case there's an update to the code, it will be updated on the existing GitHub repository.

We also have other code bundles from our rich catalog of books and videos available at https://github.com/PacktPublishing/. Check them out!

Download the color images

We also provide a PDF file that has color images of the screenshots/diagrams used in this book. You can download it here: http://www.packtpub.com/sites/default/files/downloads/9781789807943_ColorImages.pdf.

Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "The rsample library incorporates this dataset, and we can make use of this dataset directly from the library."

A block of code is set as follows:

setwd("~/Desktop/chapter 2") 
library(rsample)
data(attrition) 
str(attrition) 
mydata<-attrition 

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

[default]
exten => s,1,Dial(Zap/1|30)
exten => s,2,Voicemail(u100)
exten => s,102,Voicemail(b100)
exten => i,1,Voicemail(s0)

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "You may recollect the Customers Who Bought This Item Also Bought This heading on Amazon (or any e-commerce site) where recommendations are shown."

Warnings or important notes appear like this.

Tips and tricks appear like this.