Index

A

• abline() command / Learning basic graphics techniques, Including a regression line and residuals
• aes() function / Getting started with ggplot
• aesthetics
  • mapping, to categorical variables / Mapping aesthetics to categorical variables
  / Getting started with ggplot
• arguments, qplot syntax
  • data / The qplot syntax
  • color / The qplot syntax
  • shape / The qplot syntax
  • geom / The qplot syntax
  • main / The qplot syntax
• as.Date() function / Creating graphs with dates
• as.matrix() command / Creating dotcharts
• assigns operator
  • about / Learning basic graphics techniques
• at argument / Creating axis labels
• attach() command / Including a regression line and residuals, A medical dataset to create graphs
• axes
  • customizing / Customizing your axes
• axis() command / Creating axis labels
• axis labels
  • creating / Creating axis labels

B

• bar charts
  • creating / Creating bar charts, Creating bar charts
  • legend, including / Including a legend
  • histograms, creating / Creating histograms
  • boxplots, creating / Creating boxplots
  • pie charts, creating / Creating pie charts
  • dotcharts, creating / Creating dotcharts
• bar charts, graphs with ggplot
  • creating / Creating bar charts
  • stacked bar chart, creating / Creating a stacked bar chart
  • grouped bar chart, creating / Creating a grouped bar chart
  • faceted bar chart, creating / Creating a faceted bar chart
• barplot() command
  • about / Creating bar charts
• basic graphics techniques
  • about / Learning basic graphics techniques
• boxplot() command / Creating boxplots
• boxplots
  • creating / Creating boxplots, Creating boxplots
• boxplots, graphs with ggplot
  • creating / Creating boxplots

C

• categorical variables
  • aesthetics, mapping to / Mapping aesthetics to categorical variables
• cbind() function / Creating dotcharts
• color, graphs with ggplot
  • mapping to text / Mapping color to text
• color palettes
  • about / R's color palettes
• colors
  • controlling, on graph / Controlling colors on your graph
• colors, of R
  • about / Colors in R
• color schemes, graphs with ggplot
  • creating / Creating attractive color schemes
• complex multiple axes
  • creating / Creating complex multiple axes
  • graphs, superposing / Superposing graphs
  • point labels, creating / Creating point labels
• curve() command / Graphing mathematical functions
• curves
  • graphs, creating with / Creating graphs with several curves
• curves, graphs with ggplot
  • creating / Creating curves for each factor level

D

• data
  • sub-setting, before graphing / Subsetting your data before graphing
• dev.copy()command / Saving your graphs
• dev.off() command / Saving your graphs
• dnorm() command / Using polygon() to shade under a normal curve, Creating histograms
• dotchart() command / Creating dotcharts
• dotcharts
  • creating / Creating dotcharts
• drawresid() / Including a regression line and residuals

E

• element_text() function / Getting started with ggplot
• error bars
  • including, on graph / Including error bars on your graph
• expression() command / Including mathematical expressions on your plots

F

• facet plots
  • creating / Creating facet plots
  • creating, for histograms / Creating facet plots for histograms
• facet_grid() / Creating a faceted bar chart
• facet_wrap() / Creating a faceted bar chart
• factor / Mapping aesthetics to categorical variables
• factor() command / Mapping aesthetics to categorical variables
• font options, for graphs
  • font.axis / Creating scatterplots and line plots
  • font.tab / Creating scatterplots and line plots
  • font.main / Creating scatterplots and line plots
  • font.sub / Creating scatterplots and line plots
• function() command / Writing functions to create graphs

G

• geom_abline() / Including regression lines
• geom_histogram() / Creating histograms
• geom_point() function / Getting started with ggplot
• ggplot
  • about / Getting started with ggplot
• ggplot2
  • installing / About qplot
• graph
  • medical dataset / A medical dataset to create graphs
  • grid, adding / Including a grid on your graph
  • shading / Shading and coloring your graph
  • coloring / Shading and coloring your graph
  • smoothers, using / Using smoothers on your graph
  • colors, controlling / Controlling colors on your graph
  • setting up, as object / Setting up graphs as objects
• graphing options
  • postscript() / Saving your graphs
  • jpeg() / Saving your graphs
  • pdf() / Saving your graphs
  • bitmap() / Saving your graphs
• graphs
  • creating, with curves / Creating graphs with several curves
  • saving / Saving your graphs
  • superposing / Superposing graphs
  • creating, with dates / Creating graphs with dates
• graphs, with ggplot
  • creating / Getting started with ggplot
  • color, mapping / Mapping color, shape, and size to a variable
  • shape, mapping / Mapping color, shape, and size to a variable
  • size, mapping / Mapping color, shape, and size to a variable
  • plotting background, modifying / Modifying the plotting background
  • legend name, controlling / Controlling the legend name and legend labels
  • legend labels, controlling / Controlling the legend name and legend labels
  • x and y axes, modifying / Modifying the x and y axes
  • color schemes, creating / Creating attractive color schemes
  • attractive color schemes, creating / Creating attractive color schemes
  • curves, creating / Creating curves for each factor level
  • histograms, creating / Creating histograms
  • bar charts, creating / Creating bar charts
  • boxplots, creating / Creating boxplots
  • points, labeling with text / Labeling points with text
  • color, mapping to text / Mapping color to text
  • regression lines, including / Including regression lines
• grid
  • adding, on graph / Including a grid on your graph

H

• Height against Age graph / Creating multiple curves simultaneously
• Hexadecimal Color Chart
  • URL / Colors in R
• hist() command / Saving your graphs, Creating histograms
• histograms
  • creating / Creating histograms
  • creating, qplot used / Creating histograms with qplot
  • facet plots, creating for / Creating facet plots for histograms
• histograms, graphs with ggplot
  • creating / Creating histograms

K

• kernel density plots
  • creating / Creating kernel density plots

L

• labs() function
  • using / Getting started with ggplot
• las argument / Creating axis labels
• legend
  • creating / Including a legend
• length() / Creating pie charts
• levels() command / Creating dotcharts
• line graphs
  • creating, qplot used / Creating line graphs using qplot
• line plots
  • creating / Creating scatterplots and line plots
• lines() command / Learning basic graphics techniques, Creating histograms
• lm() command / Including a regression line and residuals
• LOWESS (locally weighted scatterplot smoothing) / Using smoothers on your graph

M

• mathematical expressions
  • including, on plots / Including mathematical expressions on your plots
• mathematical functions
  • graphing / Graphing mathematical functions
• medical dataset
  • for creating graphs / A medical dataset to create graphs
• melt() function / Creating graphs with dates
• mfrow = c(1,2) / Creating dotcharts
• mtext() command / Creating complex multiple axes
• multiple curves
  • creating simultaneously / Creating multiple curves simultaneously
• multiple graphs
  • creating, on same page / Creating multiple graphs on the same page

O

• objects
  • graphs, setting up as / Setting up graphs as objects
• Ordinary Least Squares (OLS) regressions / Including a regression line

P

• pairs()
  • about / Creating scatterplot matrices
• par() / Creating dotcharts
• parameter values
  • passing, to titles / Passing parameter values to titles and labels
  • passing, to labels / Passing parameter values to titles and labels
• paste() command / Passing parameter values to titles and labels, Including mathematical expressions on your plots
• pdf() command / Saving your graphs
• pie() command / Creating pie charts
• pie charts
  • creating / Creating pie charts
• plot() command
  • about / Learning basic graphics techniques
  / Including a regression line and residuals
• point labels
  • creating / Creating point labels
• points
  • creating / Creating and joining points
  • joining / Creating and joining points
• points, graphs with ggplot
  • lablling with text / Labeling points with text
  • labeling with text / Labeling points with text
• polygon()
  • used, for shading normal curve / Using polygon() to shade under a normal curve
• polygon() command / Shading and coloring your graph, Creating kernel density plots
• predict() command / Including a regression line and residuals

Q

• qplot
  • about / About qplot
  • used, for producing scatterplots / Producing scatterplots using qplot
  • used, for creating line graphs / Creating line graphs using qplot
  • used, for creating histograms / Creating histograms with qplot
• qplot syntax
  • about / The qplot syntax
  • arguments / The qplot syntax
• Quick-R
  • URL / Learning basic graphics techniques

R

• R
  • basic graphics techniques / Learning basic graphics techniques
  • colors / Colors in R
  • options / R provides many options
  • datasets, reading / Reading datasets into R
  • bar charts, creating / Creating bar charts
  • color palettes / R's color palettes
• range() command / Creating histograms
• read.csv() command / Including a legend
• regression line
  • including / Including a regression line, Including a regression line and residuals
• regression lines, graphs with ggplot
  • including / Including regression lines
• reshape package / Creating graphs with dates
• residuals
  • including / Including a regression line and residuals
• rnorm() command / Creating histograms
• round() command / Creating pie charts
• rug() command / Learning basic graphics techniques

S

• scale_color_brewer() function / Creating attractive color schemes
• scale_color_manual() / Creating curves for each factor level
• scale_size_area() layer / Mapping color, shape, and size to a variable
• scatterplot matrices
  • creating / Creating scatterplot matrices
  • about / Creating scatterplot matrices
  • functions, writing / Writing functions to create graphs
  • error bars, including on graph / Including error bars on your graph
• scatter plots
  • creating / Creating scatterplots and line plots
• scatterplots
  • producing, qplot used / Producing scatterplots using qplot
• sd() command / Creating histograms
• seq() command / R provides many options
• smoothed curves
  • including / Including smoothed curves
• smoothers
  • using, on graph / Using smoothers on your graph
• stat_smooth() / Including regression lines
• subset() command / Creating dotcharts, Subsetting your data before graphing, Labeling points with text
• substitute() command / Including mathematical expressions on your plots

T

• t() transpose function / Creating dotcharts
• table() command
  • about / Creating bar charts
• text() command / Creating complex multiple axes
• text() function / Creating point labels
• theme() function / Getting started with ggplot
• title() command / Passing parameter values to titles and labels
  • using / Creating graphs with several curves
• tolower() command / Creating axis labels
• toupper() command / Creating axis labels

Z

• Z Value axis / Using polygon() to shade under a normal curve