#### Overview of this book

Hands-On Exploratory Data Analysis with R will help you build a strong foundation in data analysis and get well-versed with elementary ways to analyze data. You will learn how to understand your data and summarize its characteristics. You'll also study the structure of your data, and you'll explore graphical and numerical techniques using the R language. This book covers the entire exploratory data analysis (EDA) process—data collection, generating statistics, distribution, and invalidating the hypothesis. As you progress through the book, you will set up a data analysis environment with tools such as ggplot2, knitr, and R Markdown, using DOE Scatter Plot and SML2010 for multifactor, optimization, and regression data problems. By the end of this book, you will be able to successfully carry out a preliminary investigation on any dataset, uncover hidden insights, and present your results in a business context.
Preface
Free Chapter
Section 1: Setting Up Data Analysis Environment
Setting Up Our Data Analysis Environment
Examining, Cleaning, and Filtering
Visualizing Data Graphically with ggplot2
Creating Aesthetically Pleasing Reports with knitr and R Markdown
Section 2: Univariate, Time Series, and Multivariate Data
Univariate and Control Datasets
Time Series Datasets
Multivariate Datasets
Section 3: Multifactor, Optimization, and Regression Data Problems
Multi-Factor Datasets
Handling Optimization and Regression Data Problems
Section 4: Conclusions
Next Steps
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# Code in Action

Visit the following link to check out videos of the code being run:
http://bit.ly/30X4RGO

# 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: "Mount the downloaded WebStorm-10*.dmg disk image file as another disk in your system."

A block of code is set as follows:

`html, body, #map { height: 100%;  margin: 0; padding: 0}`

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)`

Any command-line input or output is written as follows:

`\$ mkdir css\$ cd css`

Bold: Indicates a new term, an important word, or words that you see on screen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Select System info from the Administration panel."

Warnings or important notes appear like this.
Tips and tricks appear like this.