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This Book

R Graphics Cookbook

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Table of Contents

R Graphics Cookbook

Preface

1. R Basics

2. Quickly Exploring Data

3. Bar Graphs

4. Line Graphs

5. Scatter Plots

6. Summarized Data Distributions

7. Annotations

8. Axes

9. Controlling the Overall Appearance of Graphs

10. Legends

11. Facets

12. Using Colors in Plots

13. Miscellaneous Graphs

Making a Correlation Matrix

Plotting a Function

Shading a Subregion Under a Function Curve

Creating a Network Graph

Using Text Labels in a Network Graph

Creating a Heat Map

Creating a Three-Dimensional Scatter Plot

Adding a Prediction Surface to a Three-Dimensional Plot

Saving a Three-Dimensional Plot

Animating a Three-Dimensional Plot

Creating a Dendrogram

Creating a Vector Field

Creating a QQ Plot

Creating a Graph of an Empirical Cumulative Distribution Function

Creating a Mosaic Plot

Creating a Pie Chart

Creating a Map

Creating a Choropleth Map

Making a Map with a Clean Background

Creating a Map from a Shapefile

14. Output for Presentation

15. Getting Your Data into Shape

A. Introduction to ggplot2

Index

About the Author

Colophon

Creating a Vector Field

Problem

You want to make a vector field.

Solution

Use geom_segment(). For this example, we’ll use the isabel data set:

library(gcookbook) # For the data set
isabel

         x        y      z        vx        vy           vz         t    speed
 -83.00000 41.70000  0.035        NA        NA           NA        NA       NA
 -83.00000 41.62786  0.035        NA        NA           NA        NA       NA
 -83.00000 41.55571  0.035        NA        NA           NA        NA       NA
 ...
 -62.04208 23.88036 18.035 -12.54371 -5.300128 -0.045253485 -66.96269 13.61749
 -62.04208 23.80822 18.035 -12.56157 -5.254994 -0.020277001 -66.98840 13.61646
 -62.04208 23.73607 18.035 -12.78071 -5.259613  0.005555035 -67.00575 13.82064

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Contents

13. Miscellaneous Graphs > Creating a Vector Field

Creating a Vector Field

Problem

Solution