Wickham ggplot2

Elegant Graphics for Data Analysis
1. Auflage 2009
ISBN: 978-0-387-98141-3
Verlag: Springer
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 211 Seiten

Reihe: Use R!

Provides both rich theory and powerful applications Figures are accompanied by code required to produce them Full color figures

Autoren/Hrsg.

Wickham, Hadley

Inhaltsverzeichnis

1;Contents;5
2;1 Introduction;9
2.1;1.1 Welcome to ggplot2;9
2.2;1.2 Other resources;10
2.3;1.3 What is the grammar of graphics?;11
2.4;1.4 How does ggplot2 fit in with other R graphics?;12
2.5;1.5 About this book;13
2.6;1.6 Installation;14
2.7;1.7 Acknowledgements;14
3;2 Getting started with qplot;16
3.1;2.1 Introduction;16
3.2;2.2 Datasets;17
3.3;2.3 Basic use;18
3.4;2.4 Colour, size, shape and other aesthetic attributes;19
3.5;2.5 Plot geoms;20
3.5.1;2.5.1 Adding a smoother to a plot;21
3.5.2;2.5.2 Boxplots and jittered points;23
3.5.3;2.5.3 Histogram and density plots;25
3.5.4;2.5.4 Bar charts;27
3.5.5;2.5.5 Time series with line and path plots;27
3.6;2.6 Faceting;29
3.7;2.7 Other options;30
3.8;2.8 Differences from plot;33
4;3 Mastering the grammar;34
4.1;3.1 Introduction;34
4.2;3.2 Fuel economy data;35
4.3;3.3 Building a scatterplot;36
4.4;3.4 A more complex plot;41
4.5;3.5 Components of the layered grammar;42
4.5.1;3.5.1 Layers;44
4.5.2;3.5.2 Scales;44
4.5.3;3.5.3 Coordinate system;45
4.5.4;3.5.4 Faceting;45
4.6;3.6 Data structures;46
5;4 Build a plot layer by layer;48
5.1;4.1 Introduction;48
5.2;4.2 Creating a plot;49
5.3;4.3 Layers;49
5.4;4.4 Data;52
5.5;4.5 Aesthetic mappings;53
5.5.1;4.5.1 Plots and layers;53
5.5.2;4.5.2 Setting vs. mapping;54
5.5.3;4.5.3 Grouping;56
5.5.4;4.5.4 Matching aesthetics to graphic objects;59
5.6;4.6 Geoms;62
5.7;4.7 Stat;62
5.8;4.8 Position adjustments;66
5.9;4.9 Pulling it all together;66
5.9.1;4.9.1 Combining geoms and stats;67
5.9.2;4.9.2 Displaying precomputed statistics;69
5.9.3;4.9.3 Varying aesthetics and data;69
6;5 Toolbox;72
6.1;5.1 Introduction;72
6.2;5.2 Overall layering strategy;73
6.3;5.3 Basic plot types;73
6.4;5.4 Displaying distributions;75
6.5;5.5 Dealing with overplotting;79
6.6;5.6 Surface plots;84
6.7;5.7 Drawing maps;84
6.8;5.8 Revealing uncertainty;87
6.9;5.9 Statistical summaries;88
6.9.1;5.9.1 Individual summary functions;91
6.9.2;5.9.2 Single summary function;91
6.10;5.10 Annotating a plot;92
6.11;5.11 Weighted data;95
7;6 Scales, axes and legends;98
7.1;6.1 Introduction;98
7.2;6.2 How scales work;99
7.3;6.3 Usage;100
7.4;6.4 Scale details;103
7.4.1;6.4.1 Common arguments;103
7.4.2;6.4.2 Position scales;105
7.4.3;6.4.3 Colour;109
7.4.4;6.4.4 The manual discrete scale;114
7.4.5;6.4.5 The identity scale;116
7.5;6.5 Legends and axes;117
7.6;6.6 More resources;119
8;7 Positioning;121
8.1;7.1 Introduction;121
8.2;7.2 Faceting;121
8.2.1;7.2.1 Facet grid;122
8.2.2;7.2.2 Facet wrap;126
8.2.3;7.2.3 Controlling scales;127
8.2.4;7.2.4 Missing faceting variables;129
8.2.5;7.2.5 Grouping vs. faceting;129
8.2.6;7.2.6 Dodging vs. faceting;131
8.2.7;7.2.7 Continuous variables;135
8.3;7.3 Coordinate systems;135
8.3.1;7.3.1 Transformation;136
8.3.2;7.3.2 Statistics;139
8.3.3;7.3.3 Cartesian coordinate systems;139
8.3.4;7.3.4 Non-Cartesian coordinate systems;142
9;8 Polishing your plots for publication;144
9.1;8.1 Themes;144
9.1.1;8.1.1 Built-in themes;145
9.1.2;8.1.2 Theme elements and element functions;147
9.2;8.2 Customising scales and geoms;152
9.2.1;8.2.1 Scales;152
9.2.2;8.2.2 Geoms and stats;153
9.3;8.3 Saving your output;153
9.4;8.4 Multiple plots on the same page;156
9.4.1;8.4.1 Subplots;157
9.4.2;8.4.2 Rectangular grids;158
10;9 Manipulating data;161
10.1;9.1 An introduction to plyr;161
10.1.1;9.1.1 Fitting multiple models;165
10.2;9.2 Converting data from wide to long;168
10.2.1;9.2.1 Multiple time series;168
10.2.2;9.2.2 Parallel coordinates plot;171
10.3;9.3 !ggplot()! methods;173
10.3.1;9.3.1 Linear models;174
10.3.2;9.3.2 Writing your own;177
11;10 Reducing duplication;180
11.1;10.1 Introduction;180
11.2;10.2 Iteration;180
11.3;10.3 Plot templates;181
11.4;10.4 Plot functions;184
12;Appendices;186
12.1;A Translating between different syntaxes;187
12.1.1;A.1 Introduction;187
12.1.2;A.2 Translating between qplot and ggplot;187
12.1.2.1;A.2.1 Aesthetics;187
12.1.2.2;A.2.2 Layers;188
12.1.2.3;A.2.3 Scales and axes;188
12.1.2.4;A.2.4 Plot options;189
12.1.3;A.3 Base graphics;189
12.1.3.1;A.3.1 High-level plotting commands;189
12.1.3.2;A.3.2 Low-level drawing;191
12.1.3.3;A.3.3 Legends, axes and grid lines;192
12.1.3.4;A.3.4 Colour palettes;192
12.1.3.5;A.3.5 Graphical parameters;192
12.1.4;A.4 Lattice graphics;192
12.1.5;A.5 GPL;194
12.2;B Aesthetic specifications;196
12.2.1;B.1 Colour;196
12.2.2;B.2 Line type;196
12.2.3;B.3 Shape;197
12.2.4;B.4 Size;197
12.2.5;B.5 Justification;197
12.3;C Manipulating plot rendering with !grid!;199
12.3.1;C.1 Introduction;199
12.3.2;C.2 Plot viewports;199
12.3.3;C.3 Plot grobs;201
12.3.4;C.4 Saving your work;201
12.4;References;203
12.5;Index;206
12.6;Code index;206