+.ggplot                See website for documentation
.build_options          Set ggplot options
chop                    Chop
economics               US economic time series
expand_range            Expand range
ggfluctuation           Fluctuation plot
ggmissing               Missing values plot
ggorder                 Order plot
ggpcp                   Parallel coordinates plot.
ggplot.default          Create a new plot
ggsave                  ggsave
ggstructure             Structure plot
ggtheme                 Set ggplot theme.
movies                  Movie information and user ratings from
                        IMDB.com
plotmatrix              Code to create a scatterplot matrix
                        (experimental)
prettyplot              Pretty plot
qplot                   Quick plot.
rescale                 Rescale numeric vector
