draw_key                Horizontal key drawing functions
geom_barh               Bars, rectangles with bases on y-axis
geom_boxploth           Horizontal box and whiskers plot.
geom_crossbarh          Horizontal intervals: lines, crossbars &
                        errorbars.
geom_histogramh         Horizontal histograms and frequency polygons.
geom_violinh            Horizontal violin plot.
position_dodgev         Vertical Positions
stat_binh               Horizontal binning.
stat_boxploth           Horizontal boxplot computation.
stat_counth             Horizontal counting.
stat_summaryh           Horizontal summary.
stat_xdensity           Density computation on x axis.
