casualties              casualty data from the Afghan War Diary,
                        lightly cleaned
environment-class       environment S4 class
geom_coxcomb            Coxcomb glyphs
geom_freqstar           Frequency Star glyphs
geom_star               Star glyphs
geom_subplot            Create a layer of embedded subplots
geom_subplot2d          Bin data and visualize with a grid of subplots.
gg-class                gg S4 class
ggplot-class            ggplot S4 class
ggsubplot               Create a ggsubplot object
ggsubplot-class         ggsubplot class
interval_breaks         Pick breaks for interval (1d) bins.
is.rel                  is x a rel object?
is.sp_layer             Is an object (functionally) a sp_layer?
list-class              list S4 class
names_scales            Returns the first aes of a scale, to use as an
                        identifier for the scale
nasa                    Nasa data from the 2006 American Statistical
                        Association Data Expo
ply_aes                 Compute aesthetics groupwise
propogate_aes           Ensure each layer contains all aesthetic
                        mappings that affect it.
propogate_data          Ensure each layer contains a data set
proto-class             proto S4 class
ref_box                 Reference box glyph
ref_hline               Horizontal reference line glyph
ref_vline               Vertical reference line glyph
rel                     Make a rel class object
remove_I                replace I() with identity
rescale_01              rescale vectors to [0,1]
rescale_11              rescale vectors to [-1,1]
rescale_2pi             rescale vectors to [0, 2 * pi]
sp_layer                Create a sp_layer object
sp_layer-class          sp_layer class
unpanel                 Format data from a facet plot to use in a
                        ggsubplot plot
which_untrained         find scales that have no range yet
which_x                 find x scale
which_y                 find y scale
