coord_pyramid           Cartesian coordinates for a population pyramid
europe_pop              Population of four European countries by age
                        group and sex
geom_pyramid            Bars of a population pyramid
geom_pyramid_outline    A stepped outline of a population pyramid
geom_pyramid_text       Value labels on a population pyramid
position_pyramid        Mirror one side of a population pyramid
scale_x_pyramid         Position scales for the value axis of a pyramid
theme_pyramid           A theme for population pyramids
