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  • Book Overview & Buying R Graph Essentials
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R Graph Essentials

R Graph Essentials

4.5 (4)
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R Graph Essentials

R Graph Essentials

4.5 (4)
Buy this Book

Overview of this book

This book is targeted at R programmers who want to learn the graphing capabilities of R. This book will presume that you have working knowledge of R.
Table of Contents (6 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
Lock Free Chapter
1
1. Base Graphics in R – One Step at a Time
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1. Base Graphics in R – One Step at a Time
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Learning basic graphics techniques
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Creating and joining points
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Creating scatterplots and line plots
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Colors in R
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Passing parameter values to titles and labels
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Including a regression line
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Graphing mathematical functions
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R provides many options
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Creating graphs with several curves
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Customizing your axes
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Creating axis labels
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Creating multiple graphs on the same page
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Saving your graphs
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Including mathematical expressions on your plots
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Summary
2
2. Advanced Functions in Base Graphics
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2. Advanced Functions in Base Graphics
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Reading datasets into R
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Including a regression line and residuals
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A medical dataset to create graphs
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Creating complex multiple axes
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Including a grid on your graph
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Shading and coloring your graph
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Creating bar charts
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R's color palettes
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Using smoothers on your graph
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Creating scatterplot matrices
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Summary
3
3. Mastering the qplot Function
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3. Mastering the qplot Function
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About qplot
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The qplot syntax
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Producing scatterplots using qplot
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Subsetting your data before graphing
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Mapping aesthetics to categorical variables
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Controlling colors on your graph
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Setting up graphs as objects
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Creating facet plots
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Creating line graphs using qplot
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Creating multiple curves simultaneously
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Including smoothed curves
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Creating histograms with qplot
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Creating facet plots for histograms
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Creating kernel density plots
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Creating bar charts
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Creating boxplots
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Creating graphs with dates
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Summary
4
4. Creating Graphs with ggplot
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4. Creating Graphs with ggplot
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Getting started with ggplot
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Mapping color, shape, and size to a variable
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Creating attractive color schemes
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Creating curves for each factor level
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Creating histograms
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Creating bar charts
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Creating boxplots
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Labeling points with text
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Including regression lines
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Summary
5
Index
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Index

What this book covers

Chapter 1, Base Graphics in R – One Step at a Time, introduces the basic components of a graph (headings, symbols, lines, colors, axes, labels, legends, and so on) and outlines how to use the R syntax to create these components.

Chapter 2, Advanced Functions in Base Graphics, covers the techniques required to create professional-level graphs in R, including bar charts, histograms, boxplots, pie charts, and dotcharts. It also covers regression lines, smoothers, and error bars.

Chapter 3, Mastering the qplot Function, explains how to use qplot to create a wide range of basic but attractive graphs.

Chapter 4, Creating Graphs with ggplot, introduces you to ggplot, which is an even more powerful graphics tool than qplot. We focus on the main techniques to modify your plotting background, titles, grid lines, legends, axes, labels, and colors. It also covers the essential methods to create plots using ggplot. You will learn how to create all the graph types that were covered in Chapter 1, Base Graphics in R – One Step at a Time, and Chapter 2, Advanced Functions in Base Graphics, but this time using the many special and attractive features of ggplot.

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